Very high throughput fatigue damage testing system based on in situ imaging with a state-of-the-art light source

Abstract

A very high-speed fatigue damage testing system (11) is provided. A load detection device (120) and a driving device (130) of a very high-speed fatigue testing apparatus (100) are mounted on a testing stand (110). The driving device (130) is connected to an ultrasonic resonance device (140) to move it closer to or further from a load detection device (120). A tip light source (200) and an image capturing apparatus (300) are arranged around the testing apparatus (100) such that rays emitted by the tip light source (200) are projected onto a sample, and rays penetrating the sample are captured by the image capturing apparatus (300) to perform in situ imaging and monitoring of a fatigue damage evolution process inside the sample. Figure to be published: 1

Description

Title of the invention: Very high throughput fatigue damage testing system based on in situ imaging with a state-of-the-art light source Technical field

[0001] The present disclosure relates to the technical field of material damage testing, and more particularly to a very high throughput fatigue damage testing system based on in situ imaging with a state-of-the-art light source. Technological background

[0002] With the continuous development of industrial techniques, the diversity of materials causes differences in the useful life of the produced structural parts; therefore, it is necessary to accurately determine the fatigue damage properties of the corresponding structural parts in industrial production.However, the fatigue damage properties of structural parts with long service life cannot be determined quickly by conventional damage testing means such as microscope observation of polished sections, fractures or surfaces, and furthermore, the conventional damage testing means can be used only for the observation of fatigue properties on specific damage results, not for the three-dimensional dynamic observation of the evolution process of fatigue damage inside the structural parts, so that the finally confirmed fatigue damage properties cannot be precisely associated with the structural parts. Summary

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present disclosure aims to present an in situ imaging-based ultra-high-speed fatigue damage testing system with an advanced light source that can quickly perform fatigue damage testing on a sample and can perform in situ imaging and monitoring of a fatigue damage evolution process at ultra-high speed inside the sample during testing so as to quickly determine fatigue damage properties associated with the sample.

[0004] With respect to the test system, one embodiment provided by the present disclosure is a very high throughput fatigue damage test system based on in situ imaging with an advanced light source; this very high throughput fatigue damage test system comprises a light source state-of-the-art, image capturing apparatus and ultra-high-speed fatigue testing apparatus, the ultra-high-speed fatigue testing apparatus comprising a load sensing device, an ultrasonic resonance device, a test stand and a drive device; the load sensing device is mounted on the test base and the driving device is mounted on the test base and is connected to the ultrasonic resonance device to enable the latter to move towards or away from the load sensing device; a sample is disposed between the load sensing device and the ultrasonic resonance device and is attached to the ultrasonic resonance device, the ultrasonic resonance device applying an ultrasonic resonance wave to the sample for the fatigue test at very high rate when the sample is brought into contact with the load sensing device, and the load sensing device being configured to detect a load that the driving device applies to the sample via the ultrasonic resonance device, and the ultra-high-speed fatigue testing apparatus is arranged between the tip light source and the image capturing apparatus, rays emitted by the tip light source are projected onto the sample, and the image capturing apparatus is arranged on a transmission path of the rays penetrating the sample to capture the rays to perform in situ imaging and monitoring of an evolution process of ultra-high-speed fatigue damage inside the sample.

[0005] Optionally, the test stand includes a mounting base and a support structure; a receiving space is defined in the support structure and the load sensing device is arranged in the receiving space and fixedly mounted on a bottom of the receiving space; a test port is provided on a side face of the support structure remote from the bottom of the receiving space, this test port being arranged at a location directly facing the bottom of the receiving space; the driving device is arranged on one side of the support structure close to the test port and is mounted on the support structure, the ultrasonic resonance device connected to the driving device applying a resonance wave in a direction directly facing the load detection device, and the ultrasonic resonance device can be driven by the driving device to pass through the test port and extend into the receiving space and the mounting base is brought into contact with a side face of the support structure close to the bottom of the receiving space and is fixedly connected to the support structure.

[0006] Optionally, the mounting base comprises a fixed platform, a pivoting platform, a mounting platform, a first movable platform and a second movable platform; a recessed portion is provided on a side face of the fixed platform, a convex portion having a size corresponding to the recessed portion is provided on a side face of the pivoting platform, and the pivoting platform is detachably connected to the fixed platform by a connection between the recessed portion and the convex portion and can pivot relative to the fixed platform; the mounting platform is disposed on a side of the pivoting platform remote from the fixed platform and is fixedly connected to the pivoting platform and the first movable platform is mounted on the mounting platform and is removably connected to the mounting platform, the first movable platform being movable in a first direction of movement relative to the mounting platform; the second movable platform is disposed on a side of the first movable platform remote from the mounting platform and is removably connected to the first movable platform, the second movable platform being movable in a second direction of movement relative to the first movable platform and the support structure is fixedly connected to the second movable platform, the side face of the support structure close to the bottom of the receiving space being disposed opposite a side face of the second movable platform remote from the first movable platform.

[0007] Optionally, the support structure comprises a first support cylinder, a transparent enclosure and a second support cylinder, the second support cylinder and the transparent enclosure both having a cylindrical structure open at both ends; one end of the first support cylinder is closed to form the bottom of the receiving space and is fixedly connected to the mounting base; the other end of the first support cylinder is open and the transparent enclosure is arranged on a side of the first support cylinder away from the bottom of the receiving space and is mounted on a side face of the first support cylinder where an opening is formed, so that an interior space of the transparent enclosure communicates with an interior space of the first support cylinder, a spatial position of the sample which is in contact with the load detection device corresponds to a position of the transparent enclosure arranged on the structure of support, so that the rays emitted by the tip light source are projected via the transparent enclosure onto the sample which is brought into contact with the charge detection device and the second support cylinder is arranged on a side of the transparent enclosure away from the first support cylinder and is connected to the transparent enclosure, such that an interior space of the second support cylinder communicates with the interior space of the transparent enclosure and the test port is formed by an opening at the other end of the second support cylinder.

[0008] Optionally, the support structure comprises a support plate, a transparent enclosure, a first fixed cylinder, a second fixed cylinder and a plurality of support columns, the first fixed cylinder, the transparent enclosure and the second fixed cylinder each having a cylindrical structure open at both ends; the load sensing device is mounted on one side face of the backing plate and the other side face of the backing plate away from the load sensing device is fixedly connected to the mounting base; the plurality of support columns are arranged around the load sensing device and mounted on the support plate to cooperate with the support plate to form the bottom of the receiving space; the transparent enclosure is disposed between the first fixed cylinder and the second fixed cylinder and is connected to the first fixed cylinder and the second fixed cylinder, an interior space of the transparent enclosure, an interior space of the first fixed cylinder and an interior space of the second fixed cylinder communicating with each other and one end of each of the support columns away from the support plate is fixedly connected to a side face of the first fixed cylinder away from the transparent enclosure, so that an interior space formed by the mutual cooperation of the plurality of support columns is communicated with the interior space of the first fixed cylinder, and the test port is formed by an opening at one end of the second fixed cylinder which is away from the transparent enclosure, a spatial position of the sample which is in contact with the load detection device corresponding to the position of the transparent enclosure provided in the support structure, so that rays emitted by the tip light source are projected via the transparent enclosure onto the sample which is brought into contact with the load detection device.

[0009] Optionally, the drive device comprises a fixing bracket, a servo-controlled electric cylinder, a fixing disc and a plurality of fixing rods; the fixing bracket is provided with a plurality of fixing holes, the number of fixing holes being equal to the number of fixing rods, and the diameter of each of the holes fixing corresponding to the size of an end surface of each of the fixing rods; each of the fixing rods passes through a corresponding fixing hole and is fixedly connected to the support structure, and the fixing bracket is fixedly connected to each of the fixing rods, as well as to the servo electric cylinder; the fixing disc is provided with a mounting hole at a location corresponding to each of the fixing rods and the fixing disc is movably connected to the fixing rods by a connection between the mounting holes and the fixing rods and the ultrasonic resonance device is fixedly mounted on the fixing disc and a transmission rod of the servo electric cylinder is fixedly connected to the fixing disc so that the fixing disc and the ultrasonic resonance device are driven by the transmission rod to move in a longitudinal extension direction of each fixing rod.

[0010] Optionally, the drive device comprises a rotary motor, a first fixing frame, a second fixing frame, a threaded rod, a threaded sliding block, a fixing disc, a connecting rod and a plurality of fixing rods; one end of each of the plurality of fixing rods is fixedly connected to the support structure and the other end of each of the plurality of fixing rods is fixedly connected to the first fixing frame; the rotary motor is fixedly mounted to the first fixing frame and an output rotor of the rotary motor is fixedly connected to one end of the threaded rod to drive the threaded rod to rotate, a direction of the rotation axis of the rotary motor being parallel to a longitudinal extension direction of each fixing rod; the second fixing frame is sleeved on the plurality of fixing rods and is fixed to the fixing rods and the other end of the threaded rod is movably connected to the second fixing frame; the threaded sliding block is sleeved on the threaded rod and the fixing rods and is threadedly engaged with the threaded rod so that it slides in the longitudinal extension direction of each fixing rod under the rotation of the threaded rod and a side face of the fixing disc far from the support structure is fixedly connected to the threaded sliding block via the connecting rod and a side face of the fixing disc close to the support structure is fixedly connected to the ultrasonic resonance device so that the fixing disc and the ultrasonic resonance device are driven by the threaded sliding block in the longitudinal extension direction of each fixing rod.

[0011] Optionally, the ultrasonic resonance device comprises a piezoelectric transducer, a positioner and a displacement amplifier, the positioner being fixedly connected to the drive device and the displacement amplifier being fixed to one end of the sample; the piezoelectric transducer, the positioner and the displacement amplifier are sequentially connected, the piezoelectric transducer being configured to convert an electrical signal into a mechanical vibration signal and transmit the mechanical vibration signal to the displacement amplifier via the positioner, so that the displacement amplifier amplifies an amplitude of the received mechanical vibration signal and sends a corresponding ultrasonic resonance wave to the sample.

[0012] Optionally, the charge sensing device comprises a charge detector and a resonance sleeve, and the load detector is mounted on the test stand, one end of the resonance sleeve is threadedly fixed on the load detector, and the other end of the resonance sleeve can be threadedly fixed on the sample when it is contacted therewith, so that the ultrasonic resonance device, the sample, and the load detection device are fixed together by the resonance sleeve.

[0013] Optionally, the very high throughput fatigue damage testing system further comprises a computing apparatus and a cooling apparatus; the computing apparatus is electrically connected to the peak light source, the image capturing apparatus and the very high rate fatigue testing apparatus, to control an operational state of the peak light source, the image capturing apparatus and the very high rate fatigue testing apparatus and to obtain data on a very high rate fatigue damage evolution of the sample and The computing device is electrically connected to the cooling device to control the cooling device and apply cooling treatment to the sample under test.

[0014] Compared to the prior art, the present invention offers the following advantages:

[0015] In the present discussion, a driver mounted on a test stand drives an ultrasonic resonant device connected to the driver to move it toward or away from a load sensing device mounted on the test stand, a sample being disposed between the displacement amplifier and the resonant sleeve of the ultrasonic resonant device and the resonant sleeve being fixedly connected to the load sensing device, the The ultrasonic resonance device can apply an ultrasonic resonance wave to the sample to perform the fatigue test at a very high rate, and when the ultrasonic resonance device connected to the driving device approaches or moves away from the load sensing device mounted on the test stand, an average stress can be exerted on the sample, thereby performing a more comprehensive ultrasonic fatigue test in that, not only can a range of the ultrasonic fatigue test be expanded, but also a preset load can be set during the imaging process, so that the internal damage properties of the sample can be measured at different load levels.In the present invention, a peak light source and an image capturing apparatus are arranged around the testing apparatus to perform a rapid fatigue damage test such that rays emitted by the peak light source are projected onto the sample and the image capturing apparatus is arranged on a transmission path of the rays penetrating the sample such that the rays penetrating the sample are captured by the image capturing apparatus to perform in situ imaging and monitoring of a fatigue damage evolution process at a very high rate inside the sample, so that fatigue damage properties associated with the sample can be quickly determined.

[0016] To enable a clearer and easier understanding of the objects, features and advantages of the present invention, preferred embodiments thereof are described in more detail below by way of example with reference to the accompanying drawings. Brief description of the figures

[0017] In order to illustrate more clearly the technical solutions offered by various embodiments of the present invention, the drawings required by them are briefly described below. It should be understood that the drawings below are intended only to illustrate certain embodiments of the present invention and, therefore, should not be considered as limiting the scope of protection of the present invention. Those skilled in the art will understand that other relevant drawings can also be obtained from these drawings without any inventive effort.

[0018] [Fig.l] [Fig.l] is a first structural diagram of a very high rate fatigue damage testing system according to one embodiment of the present invention;

[0019] [Fig.2] [Fig.2] is a structural diagram of a test base according to a form of embodiment of the present invention;

[0020] [Fig.3] [Fig.3] is an exploded schematic view of a mounting base according to an embodiment of the present invention;

[0021] [Fig.4] [Fig.4] is a first structural diagram of a support structure according to an embodiment of the present invention;

[0022] [Fig.5] [Fig.5] is a second structural diagram of a support structure according to a embodiment of the present invention;

[0023] [Fig.6] [Fig.6] is a first schematic view showing the installation of a training device according to one embodiment of the present invention;

[0024] [Fig.7] [Fig.7] is a second schematic view showing the installation of a training device according to one embodiment of the present invention;

[0025] [Fig.8] [Fig.8] is a second structural diagram of a damage testing system by very high rate fatigue according to an embodiment of the present invention and

[0026] [Fig.9] [Fig.9] is a schematic diagram of a damage testing system by very high rate fatigue according to an embodiment of the present invention.

[0027] Reference numbers: 11: ultra-high-speed fatigue damage testing system, 12: computing apparatus, 13: cooling apparatus, 100: ultra-high-speed fatigue damage testing apparatus, 200: advanced light source, 300: image capturing apparatus, 110: test base, 120: load detection device, 130: driving device, 140: ultrasonic resonance device, 20 sample, 210: mounting base, 220: support structure, 211: fixed platform, 212: rotating platform, 213: mounting platform, 214: first movable platform, 215: second movable platform, 221: first support cylinder, 222: transparent enclosure, 223: second support cylinder, 224: support plate, 225 : first fixed cylinder, 226: second fixed cylinder, 227: support column, 131: fixing bracket, 132: electric servo cylinder, 133: fixing disc, 134: fixing rod, 135: fixing hole, 136: mounting hole,231: rotary motor, 232: first fixing frame, 233: second fixing frame, 234: threaded rod, 235 threaded sliding block, 236: connecting rod, 141: piezoelectric transducer, 142: positioner, 143: displacement amplifier, 121: load detector and 122: resonance sleeve. Description of the embodiments

[0028] In order to further clarify the objects, technical solutions and advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention are described clearly and exhaustively below with reference to their drawings. It will be understood that the embodiments described below constitute only a part and not the entirety of the embodiments of the present invention. Generally speaking, the components of the embodiments of the present invention, as described and illustrated in the figures below, can be arranged and designed in a multitude of different configurations.

[0029] Accordingly, the following detailed description of the embodiments of the present invention as shown in the figures is not intended to limit the scope of the present invention as claimed, but is merely representative of selected embodiments of the present invention. All other embodiments obtained by those skilled in the art in light of the embodiments of the present invention without inventive step should fall within the scope of the present invention as claimed.

[0030] It should be noted that like letters and reference numbers designate like objects in the following figures, and therefore, once an object is defined in one figure, it need not be further defined or explained in the following figures.

[0031] In describing the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner" or "outer" are based on the orientation or positional relationships shown by the figures or on the orientation or positional relationships in which the product which is the subject of the invention is conventionally placed when in use, and that such terms are intended only to facilitate and simplify the description of the present invention, and not to indicate or imply that the designated devices or elements must be in a particular orientation or constructed or used in a particular orientation, and therefore should not be considered as limiting the present invention.Furthermore, terms such as "first", "second / second" and "third" are used only to distinguish objects in the description, and are not to be understood as indicating or implying relative importance.

[0032] In describing the present invention, it should also be noted that the terms "arranged", "mounted", "coupled" and "connected" are to be understood in a broad sense, unless otherwise indicated or defined. For example, a connection may be a fixed, removable or integrated connection, may be a mechanical connection or an electrical connection, or may be a direct coupling or an indirect coupling using an intermediate element, or may be an internal communication between two elements. The specific meanings in the present invention of the above-mentioned terms may be understood by those skilled in the art depending on the specific circumstances.

[0033] Certain embodiments of the present invention are described in detail below with reference to the accompanying drawings. The embodiments described below below and the features of the different embodiments can be combined with each other without conflict.

[0034] [Fig.l] is a structural diagram of a very high throughput fatigue damage testing system 11 according to one embodiment of the present invention. In one embodiment of the present invention, the very high throughput fatigue damage testing system 11 is used to rapidly test fatigue damage of a sample (or specimen) and to perform in situ imaging and monitoring of a very high throughput fatigue damage evolution process within the sample during testing so as to rapidly determine fatigue damage properties associated with the sample.Here, the ultra-high-speed fatigue damage testing system 11 comprises a peak light source 200, an image capture apparatus 300, and a ultra-high-speed fatigue testing apparatus 100, the ultra-high-speed fatigue testing apparatus 100 comprising a load sensing device 120, an ultrasonic resonance device 140, a test stand 110, and a drive device 130.

[0035] Reference is made to [Fig. 1] in combination with [Fig. 2], [Fig. 2] being a structural diagram of the test stand 110 according to one embodiment of the present invention. In one embodiment of the present invention, the ultra-high rate fatigue testing apparatus 100 is used to perform an ultra-high rate fatigue test on a sample 20, the load sensing device 120 being mounted on the test stand 110 to be applied against the sample 20 to facilitate the ultra-high rate fatigue test on the sample 20 by the ultra-high rate damage testing apparatus 100.

[0036] In this embodiment, the test stand 110 comprises a mounting base 210 and a support structure 220. The support structure 220 is mounted on the mounting base 210 and the load sensing device 120 is placed in the support structure 220. More specifically, a receiving space is defined in the support structure 220 and the load sensing device 120 is placed in the receiving space and fixedly mounted on the bottom of the receiving space. The mounting base 210 is in contact with a side face of the support structure 220 near the bottom of the receiving space and is fixedly connected with the support structure 220 to support the latter.

[0037] In this embodiment, the mounting base 210 may be a fixed, non-removable base or a movable base.

[0038] Optionally, reference is made to [Fig. 3]. [Fig. 3] is an exploded schematic view of the mounting base 210 according to one embodiment of the present invention. In this embodiment, when the mounting base 210 is a movable base, it may comprise a fixed platform 211, a platform pivoting 212, a mounting platform 213, a first mobile platform 214 and a second mobile platform 215.

[0039] Here, a recessed portion is provided on a side face of the fixed platform 211, a convex portion having a size corresponding to the recessed portion is provided on a side face of the pivoting platform 212, and the pivoting platform 212 is removably connected to the fixed platform 211 by a connection between the recessed portion and the convex portion and can pivot relative to the fixed platform 211. Here, a test technician can adjust a rotation angle of the pivoting platform 212 relative to the fixed platform 211 according to the needs of the test.

[0040] The mounting platform 213 is disposed on a side of the pivoting platform 212 away from the fixed platform 211 and is fixedly connected to the pivoting platform 212, such that the pivoting platform 212, when pivoted, pivots the mounting platform 213.

[0041] The first movable platform 214 is mounted on the mounting platform 213 and is removably connected to the mounting platform 213. Here, the first movable platform 214 is movable in a first direction of movement relative to the mounting platform 213, the first direction of movement being any direction parallel to a horizontal plane.

[0042] The second movable platform 215 is disposed on a side of the first movable platform 214 remote from the mounting platform 213 and is removably connected to the first movable platform 214. Here, the second movable platform 215 is movable in a second direction of movement relative to the first movable platform 214, the second direction of movement being any direction parallel to a horizontal plane, and may be parallel to the first direction of movement or may intersect the first direction of movement. In one example of this embodiment, the second direction of movement is perpendicular to the first direction of movement.

[0043] The support structure 220 is fixedly connected to the second movable platform 215, a side face of the support structure 220 which is remote from the bottom of the receiving space being arranged opposite a side face of the second movable platform 215 which is remote from the first movable platform 214.

[0044] In this embodiment, the test technician can pivot the support structure 220, move it in the first direction of movement, move it in the second direction of movement, or move it in any direction on a horizontal plane through cooperation between the pivoting platform 212, the first movable platform 214, and the second movable platform 215, in order to set a test position of the sample 20 and ensure the pivotability of the sample 20 relative to the rays emitted by the tip light source 200.

[0045] In one embodiment of the present invention, the drive device 130 of the ultra-high-speed fatigue testing apparatus 100 is mounted on the test stand 110 and is connected to the ultrasonic resonance device 140, and the sample 20 is disposed between the ultrasonic resonance device 140 and the load detection device 120 and is fixedly connected to the ultrasonic resonance device 140. Here, the drive device 130 is used to drive the ultrasonic resonance device 140 to approach or move away from the load detection device 120, so that the ultrasonic resonance device 140 moves the sample 20 toward or away from the load detection device 120.

[0046] Here, when the ultrasonic resonance device 140 brings the sample 20 into contact with the load detection device 120 under the action of the driving device 130, an ultrasonic resonance wave for fatigue testing at a very high rate is applied to the sample 20, and at this time, the load detection device 120 is also used to detect a load applied to the sample 20 by the driving device 130 via the ultrasonic resonance device 140, so that a rapid test of fatigue damage of the sample 20 is realized by the cooperation among the load detection device 120, the ultrasonic resonance device 140, the test stand 110, and the driving device 130.

[0047] In this embodiment, the test base 110 is fixedly connected with the drive device 130 via the support structure 220.

[0048] More specifically, the side face of the support structure 220 which is far from the bottom of the receiving space is provided with a test port, so that the receiving space of the support structure 220 is in communication with the outside via the test port, and the driving device 130 is arranged on one side of the support structure 220 close to the test port and is mounted on the support structure 220.

[0049] Here, the test port is disposed on the support structure 220 at a location directly facing the bottom of the receiving space, and the ultrasonic resonance device 140 connected to the driving device 130 applies a resonance wave in a direction directly facing the load detection device 120 located in the support structure 220, so that the ultrasonic resonance device 140 can be driven by the driving device 130 to pass through the test port and extend into the receiving space so as to ensure that the sample 20 fixed by the ultrasonic resonance device 140 can be brought into contact with the load detection device 120.

[0050] In this embodiment, the ultrasonic resonance device 140 can apply an ultrasonic resonance wave having a maximum resonant frequency of 20 kHz to the sample 20, so as to effectively perform a fatigue test for 108 to 1010 cycles, which greatly reduces the fatigue test time. Furthermore, while the ultrasonic resonance device 140 is brought into contact with the load sensing device 120 with the sample 20 therebetween, the driving device 130 can apply constant loads of different degrees to the sample 20 to determine the fatigue damage properties of the sample 20 under different loads.

[0051] Here, the test technician can control the drive device 130 to move the ultrasonic resonance device 140 away from the support structure 220, so as to mount the sample 20 on a portion of the ultrasonic resonance device 140 where ultrasonic resonance material is applied. In one example of this embodiment, the sample 20 is threadedly secured to the ultrasonic resonance device 140.After the sample 20 is mounted, the test technician can control the driving device 130 to bring the ultrasonic resonance device 140 closer to the support structure 220, and make the ultrasonic resonance device 140 bring the sample 20 into contact with the load detection device 120 located in the receiving space, so that an ultrasonic resonance wave for fatigue testing at a very high rate is applied to the sample 20 by controlling an operational frequency of the ultrasonic resonance device 140, and at the same time, the test technician can also control the operational state of the driving device 130 so that it applies constant loads of different degrees to the sample 20.

[0052] In one embodiment of the present invention, the point light source 200 and the image capture apparatus 300 of the ultra-high throughput fatigue damage testing system 11 are used to perform in situ imaging and monitoring of the fatigue damage evolution process at ultra-high throughput within the sample 20 so as to quickly determine the fatigue damage properties associated with the sample 20. In one example of this embodiment, the fixed platform 211 is fixedly connected to a platform on which the point light source 200 is located.

[0053] More specifically, the ultra-high-speed fatigue testing apparatus 100 is disposed between the tip light source 200 and the image capturing apparatus 300, the rays emitted by the tip light source 200 are projected onto the sample 20 located in the support structure 220, and the image capturing apparatus 300 is disposed on a transmission path of the rays penetrating the sample 20 and used for the evolution process of the ultra-high-speed fatigue damage inside the sample 20 so as to achieve the observation of the properties of the fatigue damage non-destructively with high efficiency and high precision.

[0054] In one embodiment of the present invention, two examples of the support structure 220 are provided to ensure that the rays emitted by the tip light source 200 can be projected normally onto the sample 20.

[0055] Optionally, reference is made to [Fig. 4]. [Fig. 4] is a first structural diagram of a support structure 220 according to one embodiment of the present invention. In one example of this embodiment, the support structure 220 comprises a first support cylinder 221, a transparent enclosure 222, and a second support cylinder 223, the second support cylinder 223 and the transparent enclosure 222 both having a cylindrical structure open at both ends, and the first support cylinder 221 having a cylindrical structure open at one end and closed at the other end.

[0056] Here, the support structure 220 forms the bottom of the receiving space by the closed end of the first support cylinder 221 and is fixedly connected with the mounting base 210 by the closed end of the first support cylinder 221.

[0057] The transparent enclosure (which is an enclosure for transmitting X-rays / neutrons) 222 is disposed on one side of the first support cylinder 221 away from the bottom of the receiving space and is mounted on a side face of the first support cylinder 221 where an opening is formed, so that the interior space of the transparent enclosure 222 communicates with the interior space of the first support cylinder 221.

[0058] The second support cylinder 223 is disposed on one side of the transparent enclosure 222 away from the first support cylinder 221 and is connected with the transparent enclosure 222 such that the interior space of the second support cylinder 223 communicates with the interior space of the transparent enclosure 222, such that the interior space of the first support cylinder 221, the interior space of the transparent enclosure 222 and the interior space of the second support cylinder 223 communicate with each other to form the receiving space, and the test port is formed by an opening at the other end of the second support cylinder 223 which is away from the transparent enclosure 222.

[0059] In this example, the spatial position of the sample 20 when it is brought into contact with the charge detection device 120 corresponds to the position of the transparent enclosure 222 disposed in the support structure 220, so that the rays emitted by the tip light source 200 are projected via the transparent enclosure 222 onto the sample 20 which is brought into contact with the charge detection device 120, and the rays penetrating the sample 20 can also be emitted outside the support structure 220 via the transparent enclosure 222.

[0060] Here, the material of the transparent enclosure 222 is related to the nature of the tip light source 200. For example, if the tip light source 200 is a free electron laser generator in the X-ray range, the transparent enclosure 222 must be made of a material that absorbs less X-rays and has a resistance higher such as an acrylic material, quartz, carbon fiber or the like, preferably an acrylic material having a high specific resistance, and if the tip light source 200 is a spallation neutron source, the transparent enclosure 222 may be made of an aluminum alloy or an acrylic material having a high specific resistance.

[0061] Optionally, reference is made to [Fig. 5]. [Fig. 5] is a second structural diagram of the support structure 220 according to one embodiment of the present invention. In another example of this embodiment, the support structure 220 comprises a support plate 224, a transparent enclosure 222, a first fixed cylinder 225, a second fixed cylinder 226 and a plurality of support columns 227, the first fixed cylinder 225, the transparent enclosure 222 and the second fixed cylinder 226 all having a cylindrical structure open at both ends.

[0062] Here, the load sensing device 120 is mounted on one side face of the support plate 224 and the other side face of the support plate 224 which is remote from the load sensing device 120 is fixedly connected to the mounting base 210. The support columns 227 are arranged around the load sensing device 120 and are mounted on the support plate 224 to form in cooperation therewith the bottom of the receiving space.

[0063] The transparent enclosure 222 is disposed between the first fixed cylinder 225 and the second fixed cylinder 226 and is connected to the first fixed cylinder 225 and to the second fixed cylinder 226, the interior space of the transparent enclosure 222, the interior space of the first fixed cylinder 225 and the interior space of the second fixed cylinder 226 communicating with each other.

[0064] One end of each of the support columns 227 which is remote from the support plate 224 is fixedly connected to a side face of the first fixed cylinder 225 which is remote from the transparent enclosure 222, so that an interior space formed by mutual cooperation between the support columns 227 is in communication with the interior space of the first fixed cylinder 225, so that the receiving space is formed by the multiple interior spaces communicating with each other, and the test port is formed by the opening at the end of the second fixed cylinder 226 which is remote from the transparent enclosure 222.

[0065] In this example, the spatial position of the sample 20 when it is in contact with the charge detection device 120 also corresponds to the position of the transparent enclosure 222 disposed on the support structure 220, so that the rays emitted by the tip light source 200 can be projected via the transparent enclosure 222 onto the sample 20 which is brought into contact with the charge detection device 120, and it is ensured that the rays penetrating the sample 20 can also be emitted outside the support structure 220 via the transparent enclosure 222.

[0066] In one embodiment of the present invention, two examples of the drive device 130 are provided, in order to ensure that the drive device 130 can move the ultrasonic resonance device 140 toward or away from the load sensing device 120 located on the support structure 220.

[0067] Optionally, reference will be made to [Fig. 6]. [Fig. 6] is a first schematic view showing the installation of the drive device 130 according to an embodiment of the present invention. In an example of this embodiment, the drive device 130 comprises a fixing bracket 131, a servo-controlled electric cylinder 132, a fixing disc 133 and a plurality of fixing rods 134.

[0068] Here, the fixing lug 131 is provided with a plurality of fixing holes 135, the number of fixing holes 135 being equal to the number of fixing rods 134 and the diameter of each of the fixing holes 135 corresponding to the size of an end surface of each of the fixing rods 134.

[0069] Each of the fixing rods 134 passes through a corresponding fixing hole 135 and is fixedly connected to the support structure 220, and the fixing bracket 131 is fixedly connected to each of the fixing rods 134 and is fixedly connected to the electric servo cylinder 132 to fix the electric servo cylinder 132 to the support structure 220.

[0070] The fixing disc 133 is provided with a mounting hole 136 at a location corresponding to each of the fixing rods 134 and the fixing disc 133 is movably connected to the fixing rods 134 by the connection between the mounting holes 136 and the fixing rods 134; that is, the fixing disc 133 can slide on the fixing rods 134.

[0071] The ultrasonic resonance device 140 is fixedly mounted on the fixing disk 133 and a transmission rod of the servo electric cylinder 132 is fixedly connected to the fixing disk 133 so that the fixing disk 133 and the ultrasonic resonance device 140 are driven by the transmission rod to move in a longitudinal extension direction of each fixing rod 134. Here, the ultrasonic resonance device 140 is mounted on a side face of the fixing disk 133 facing the support structure 220 so as to ensure that the ultrasonic resonance device 140 applies a resonance wave in a direction directly facing the load detection device 120 in the support structure 220.

[0072] Optionally, reference is made to [Fig. 7]. [Fig. 7] is a second schematic view showing the installation of the drive device 130 according to one embodiment of the present invention. In another example of this embodiment, the drive device 130 comprises a rotary motor 231, a first fixing frame 232, a second fixing frame 233, a threaded rod 234, a threaded sliding block 235, a fixing disc 133, a connecting rod 236 and a plurality of fixing rods 134.

[0073] Here, one end of each of the plurality of fixing rods 134 is fixedly connected to the support structure 220 and the other end of each of the plurality of fixing rods 134 is fixedly connected to the first fixing frame 232. The rotary motor 231 is fixedly mounted to the first fixing frame 232 and an output rotor of the rotary motor 231 is fixedly connected to one end of the threaded rod 234 to drive the threaded rod 234 to rotate, a direction of the rotation axis of the rotary motor 231 being parallel to a longitudinal extension direction of each fixing rod 134.

[0074] The second fixing frame 233 is provided with fixing holes corresponding to the fixing rods 134; the second fixing frame 233 is sleeved on the plurality of fixing rods 134 via the fixing holes and is fixed to the fixing rods 134 and the other end of the threaded rod 234 is movably connected to the second fixing frame 233 to ensure the rotational capability of the threaded rod 234 relative to the second fixing frame 233.

[0075] The threaded sliding block 235 is provided with a mounting hole corresponding to the threaded rod 234 and sliding holes corresponding to the fixing rods 134, and an inner wall of the mounting hole is provided with a threaded structure corresponding to the threaded rod 234. The threaded sliding block 235 is sleeved on the threaded rod 234 via the mounting hole and is sleeved on the fixing rods 134 via the sliding holes, and the mounting hole is threadedly engaged with the threaded rod 234 so that the threaded sliding block 235 can slide in the longitudinal extension direction of each fixing rod 134 under the rotation of the threaded rod 234.

[0076] A side face of the fixing disc 133 away from the support structure 220 is fixedly connected to the threaded sliding block 235 via the connecting rod 236 and a side face of the fixing disc 133 close to the support structure 220 is fixedly connected to the ultrasonic resonance device 140 so that the fixing disc 133 and the ultrasonic resonance device 140 are driven by the threaded sliding block 235 in the longitudinal extension direction of each fixing rod 134.

[0077] In one embodiment of the present invention, the ultrasonic resonance device 140 comprises a piezoelectric transducer 141, a positioner 142 and a displacement amplifier 143.

[0078] Here, the piezoelectric transducer 141, the positioner 142 and the displacement amplifier 143 are connected sequentially, the piezoelectric transducer 141 being configured to convert an electrical signal into a signal of mechanical vibration and to transmit the mechanical vibration signal to the displacement amplifier 143 via the positioner 142, so that the displacement amplifier 143 amplifies an amplitude of the received mechanical vibration signal and sends a corresponding ultrasonic resonance wave.

[0079] In this embodiment, the positioner 142 is fixedly connected to the drive device 130 to ensure that the drive device 130 can move the ultrasonic resonance device 140; the displacement amplifier 143 is attached to the sample 20 to apply an ultrasonic resonance wave to the sample 20 when the ultrasonic resonance device 140 is brought into contact with the load sensing device 120 with the sample 20 therebetween.

[0080] In one embodiment of the present invention, the load detection device 120 comprises a load detector 121. The load detector 121 is mounted on the test base 110 and the load detection device 120 can detect in real time, by means of the load detector 121, the load applied to the sample 20 by the driving device 130 via the ultrasonic resonance device 140.

[0081] In an example of this embodiment, the load detection device 120 further comprises a resonance sleeve (threaded connection cylinder) 122 which is also a component of the ultrasonic resonance device 140. One end of the resonance sleeve 122 is threadedly fixed to the load detector 121 and the other end of the resonance sleeve 122 can be threadedly fixed to the sample 20 when brought into contact therewith. Here, when the resonance sleeve 122 is threadedly fixed to the sample 20, the ultrasonic resonance device 140, the sample 20 and the load detection device 120 are fixed together.After the ultrasonic resonance device 140 performs the corresponding ultra-high-rate fatigue test, the driving device 130 can move the ultrasonic resonance device 140 away from the load sensing device 120 to apply a specific tensile force to the sample 20 to ensure the opening of the crack(s) inside the sample 20 so that the tip light source 200 and the image capturing apparatus 300 perform the in situ imaging and monitoring of the crack(s) opening process.

[0082] In an example of this embodiment, the load sensing device 120 may further comprise a resonance rod. The resonance rod is disposed at one end of the resonance sleeve 122 remote from the load sensor 121 and is threadedly secured to the resonance sleeve 122, such that the sample 20 is brought into contact with the resonance sleeve 122 with the resonance rod therebetween, and the resonance effect of the ultrasonic resonance ground that is applied by the ultrasonic resonance device 140 to the sample 20 is enhanced by the resonance rod, thereby shortening the overall fatigue test time to a very short time. high rate, and therefore to determine more quickly the fatigue damage properties associated with sample 20.

[0083] In one embodiment of the present invention, when the tip light source 200 is of different types, the transparent enclosure 222 in the support structure 220 is changed structurally in addition to changes in the selection of its material, and the number of corresponding image capturing apparatuses 300 must also be adjusted.

[0084] For example, when the tip light source 200 is a free electron laser generator in the X-ray range, it is unnecessary to provide an opening on the side wall of the transparent enclosure 222, and a corresponding image capturing apparatus 300 is provided, this image capturing apparatus 300 being disposed directly in a direction in which the rays of the tip light source 200 are emitted, as shown in [Fig.l].

[0085] When the tip light source 200 is a spallation neutron source, four openings are to be uniformly arranged on the side wall of the transparent enclosure 222, with an angle of 90° therebetween on the circumference, and one of the openings is used as a radiation incidence port on which the rays of the tip light source 200 are incident, an opening opposite the radiation incidence port serves as a transmission output port for the tip light source 200 and the other two openings serve as diffraction output ports for the tip light source 200, and at this time, the number of the image capturing apparatuses 300 is three and these three image capturing apparatuses 300 are arranged in the ray emission directions corresponding to the transmission output port and the two diffraction output ports respectively.Here, when the rays emitted by the tip light source 200 enter the inside of the support structure 220 through the radiation incidence port and are transmitted to the sample 20, the rays entering the sample 20 are correspondingly divided into three radiation components which respectively exit the support structure 220 through the transmission output port and the two diffraction output ports, and these three radiation components are respectively captured by the three image capturing apparatuses 300 as shown in [Fig.8]. .

[0086] Optionally, reference is made to [Fig. 9]. [Fig. 9] is a schematic diagram of a very high throughput fatigue damage testing system 11 according to one embodiment of the present invention. In this embodiment of the present invention, the very high throughput fatigue damage testing system 11 further comprises a computing apparatus 12 and a cooling apparatus 13.

[0087] The computing apparatus 12 is electrically connected to the peak light source 200, the image capture apparatus 300, and the very high-speed fatigue testing apparatus 100 to monitor the operational status of the peak light source 200, the image capture apparatus 300, and the very high-speed fatigue testing apparatus 100 and obtain data on the evolution of the very high-speed fatigue damage of the sample 20 by the cooperation between the peak light source 200, the image capture apparatus 300, and the very high-speed fatigue testing apparatus 100, so as to quickly determine the fatigue damage properties associated with the sample 20.

[0088] Here, the computing apparatus 12 can be electrically connected to the driving device 130, the ultrasonic resonance device 140 and the load detection device 120 in the ultra-high rate fatigue testing apparatus 100, so that a very high rate fatigue test can be quickly performed on the sample 20 by controlling the operational state of the driving device 130, the ultrasonic resonance device 140 and the load detection device 120.

[0089] In this embodiment, the computing apparatus 12 is electrically connected to the cooling apparatus 13 to control the cooling apparatus 13 and apply a cooling treatment to the sample 20 under test. Here, the cooling apparatus 13 may include a cooling air nozzle that is placed in an integrated space of the support structure 220 and apply the cooling treatment directly to the sample 20 under the control of the computing apparatus 12.

[0090] In summary, in a very high-speed fatigue damage testing system based on in situ imaging with an advanced light source according to the present invention, a driving device mounted on a test stand according to the present invention drives an ultrasonic resonance device connected to the driving device to move it closer to or further from a load detection device mounted on the test stand, a sample being disposed between the ultrasonic resonance device and the load detection device and fixedly connected to the ultrasonic resonance device, the ultrasonic resonance device applies an ultrasonic resonance wave to apply a very high-speed fatigue test to the sample when the sample is moved to be brought into contact with the load detection device, and at this time, the load detection device is used to detect a load applied to the sample,the load being applied by the driving device via the ultrasonic resonance device, so that a rapid test of the fatigue damage suffered by the sample is realized through the cooperation among the load detection device, the ultrasonic resonance device, the test stand and the driving device. In the present invention, , a peak light source and an image capturing apparatus are arranged around the testing apparatus to perform a rapid fatigue damage test such that rays emitted by the peak light source are projected onto the sample and the image capturing apparatus is arranged on a transmission path of the rays penetrating the sample such that the rays penetrating the sample are captured by the image capturing apparatus to perform in situ imaging and monitoring of the fatigue damage evolution process at a very high rate inside the sample, so that fatigue damage properties associated with the sample can be quickly determined.

[0091] The above description is intended only to illustrate various embodiments of the present invention, but the scope of protection of the present invention is not limited thereto, and all modifications, variations or equivalent substitutions which can be readily envisaged by those skilled in the art within the scope of the technical field described in the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. Claims A very high throughput fatigue damage testing system (11) based on in situ imaging with an advanced light source (200), characterized in that it comprises an advanced light source (200), an image capturing apparatus (300) and a very high throughput fatigue testing apparatus (100), wherein the very high throughput fatigue testing apparatus (100) comprises a load sensing device (120), an ultrasonic resonance device (140), a test base (110) and a driving device (130); wherein the load sensing device (120) is mounted on the test base (110) and the drive device (130) is mounted on the test base (110) and is connected to the ultrasonic resonance device (140) to drive the ultrasonic resonance device (140) to move toward or away from the load sensing device (120); a sample (20) is disposed between the load detection device (120) and the ultrasonic resonance device (140) and is attached to the ultrasonic resonance device (140), the ultrasonic resonance device (140) applying an ultrasonic resonance wave to the sample (20) for the fatigue test at a very high rate when the sample (20) is brought into contact with the load detection device (120), and the load detection device (120) is configured to detect a load that the driving device (130) applies to the sample (20) via the ultrasonic resonance device (140); the ultra-high-speed fatigue testing apparatus (100) is disposed between the tip light source (200) and the image capturing apparatus (300), rays emitted by the tip light source (200) are projected onto the sample (20), and the image capturing apparatus (300) is disposed on a transmission path of the rays penetrating the sample (20) to capture the rays to perform in situ imaging and monitoring of an evolution process of ultra-high-speed fatigue damage inside the sample (20), wherein the testing base (110) comprises a mounting base (210) and a support structure (220);

2. a receiving space is defined in the support structure (220) and the load sensing device (120) is disposed in the receiving space and fixedly mounted on a bottom of the receiving space; a test hole is provided on a side face of the support structure (220) remote from the bottom of the receiving space, this test hole being arranged at a location directly facing the bottom of the receiving space; the driving device (130) is arranged on one side of the support structure (220) close to the test port and is mounted on the support structure (220), the ultrasonic resonance device (140) connected to the driving device (130) applying a resonance wave in a direction directly facing the load detection device (120), and the ultrasonic resonance device (140) being drivable by the driving device (130) to pass through the test port and extend into the receiving space and the mounting base (210) is brought into contact with a side face of the support structure (220) close to the bottom of the receiving space and is fixedly connected to the support structure (220). The system of claim 1, wherein the mounting base (210) comprises a fixed platform (211), a pivoting platform (212), a mounting platform (213), a first movable platform (214) and a second movable platform (215); a recessed portion is provided on a side face of the fixed platform (211), a convex portion having a size corresponding to the recessed portion is provided on a side face of the pivoting platform (212), and the pivoting platform (212) is detachably connected to the fixed platform (211) by a connection between the recessed portion and the convex portion and can pivot relative to the fixed platform (211); the mounting platform (213) is arranged on a side of the rotating platform away from the fixed platform (211) and is fixedly connected to the rotating platform (212) and the first movable platform (214) is mounted on the mounting platform (213) and is removably connected to the mounting platform (213), the first movable platform (214) being

3. movable in a first direction of movement relative to the mounting platform (213); the second movable platform (215) is disposed on a side of the first movable platform (214) remote from the mounting platform (213) and is removably connected to the first movable platform (214), the second movable platform (215) being movable in a second direction of movement relative to the first movable platform (214) and the support structure (220) is fixedly connected to the second movable platform (215), the side face of the support structure (220) close to the bottom of the receiving space being arranged opposite a side face of the second movable platform (215) distant from the first movable platform (214). The system of claim 1 or 2, wherein the support structure (220) comprises a first support cylinder (221), a transparent enclosure (222) and a second support cylinder (223), the second support cylinder (223) and the transparent enclosure (222) both having a cylindrical structure open at both ends; one end of the first support cylinder (221) is closed to form the bottom of the receiving space and is fixedly connected to the mounting base (210); the other end of the first support cylinder (221) is open and the transparent enclosure (222) is arranged on one side of the first support cylinder (221) away from the bottom of the receiving space and is mounted on a side face of the first support cylinder (221) where an opening is formed, so that an interior space of the transparent enclosure (222) communicates with an interior space of the first support cylinder (221), a spatial position of the sample (20) which is in contact with the load detection device (120) corresponds to a position of the transparent enclosure (222) arranged on the support structure (220), so that the rays emitted by the tip light source (200) are projected via the transparent enclosure (222) onto the sample (20) which is brought into contact with the load detection device (120) and the second support cylinder (223) is arranged on a side of the transparent enclosure (222) away from the first support cylinder (221) and is connected to the transparent enclosure (222), so that an interior space of the second support cylinder (223) communicates with the space

4. inside the transparent enclosure (222) and the test port is formed by an opening at the other end of the second support cylinder (223). The system of claim 1 or 2, wherein the support structure (220) comprises a support plate (224), a transparent enclosure (222), a first fixed cylinder (225), a second fixed cylinder (226) and a plurality of support columns (227), the first fixed cylinder (225), the transparent enclosure (222) and the second fixed cylinder (226) each having a cylindrical structure open at both ends; the load sensing device (120) is mounted on one side face of the support plate (224) and the other side face of the support plate (224) remote from the load sensing device (120) is fixedly connected to the mounting base (210); the plurality of support columns (227) are arranged around the load sensing device (120) and mounted on the support plate (224) to cooperate with the support plate (224) to form the bottom of the receiving space; the transparent enclosure (222) is disposed between the first fixed cylinder (225) and the second fixed cylinder (226) and is connected to the first fixed cylinder (225) and the second fixed cylinder (226), an interior space of the transparent enclosure (222), an interior space of the first fixed cylinder (225) and an interior space of the second fixed cylinder (226) communicating with each other and one end of each of the support columns (227) away from the support plate (224) is fixedly connected to a side face of the first fixed cylinder (225) away from the transparent enclosure (222), so that an interior space formed by the mutual cooperation of the plurality of support columns (227) is communicated with the interior space of the first fixed cylinder (225), and the test port is formed by an opening at one end of the second fixed cylinder (226) which is away from the transparent enclosure (222); a spatial position of the sample (20) which is in contact with the charge detection device (120) corresponding to the position of the transparent enclosure (222) arranged in the support structure (220), so that the rays emitted by the tip light source (200) are projected via the transparent enclosure (222) onto the sample (20) which is brought into contact with the load detection device (120).

5. A system according to any one of claims 1 to 4, wherein the drive device (130) comprises a fixing bracket (131), a servo-controlled electric cylinder (132), a fixing disc (133) and a plurality of fixing rods (134); the fixing bracket (131) is provided with a plurality of fixing holes (135), the number of fixing holes (135) being equal to the number of fixing rods (134), and the diameter of each of the fixing holes (135) corresponding to the size of an end surface of each of the fixing rods (134); each of the fixing rods (134) passes through a corresponding fixing hole (135) and is fixedly connected to the support structure (220), and the fixing bracket (131) is fixedly connected to each of the fixing rods (134), as well as to the electric servo cylinder (132); the fixing disc (133) is provided with a mounting hole (136) at a location corresponding to each of the fixing rods (134) and the fixing disc (133) is movably connected to the fixing rods (134) by a connection between the mounting holes (136) and the fixing rods (134) and the ultrasonic resonance device (140) is fixedly mounted on the fixing disc (133) and a transmission rod of the servo electric cylinder (132) is fixedly connected to the fixing disc (133) so that the fixing disc (133) and the ultrasonic resonance device (140) are driven by the transmission rod to move in a longitudinal extension direction of each fixing rod (134).

6. The system of any one of claims 1 to 4, wherein the drive device (130) comprises a rotary motor (231), a first fixing frame (232), a second fixing frame (233), a threaded rod (234), a threaded sliding block (235), a fixing disc (133), a connecting rod (236) and a plurality of fixing rods (134); one end of each of the plurality of fixing rods (134) is fixedly connected to the support structure (220) and the other end of each of the plurality of fixing rods (134) is fixedly connected to the first fixing frame (232);

7. the rotary motor (231) is fixedly mounted to the first fixing frame (232), and an output rotor of the rotary motor (231) is fixedly connected to one end of the threaded rod (234) to drive the threaded rod (234) to rotate, a rotation axis direction of the rotary motor (231) being parallel to a longitudinal extension direction of each fixing rod (134); the second fixing frame (233) is sleeved on the plurality of fixing rods (134) and is fixed to the fixing rods (134) and the other end of the threaded rod (234) is movably connected to the second fixing frame (233); the threaded sliding block (235) is sleeved on the threaded rod (234) and the fixing rods (134) and the threaded sliding block (235) is threadedly engaged with the threaded rod (234) so ​​that the threaded sliding block (235) slides in the longitudinal extension direction of each fixing rod (134) under the rotation of the threaded rod (234) and a side face of the fixing disc (133) away from the support structure (220) is fixedly connected to the threaded sliding block (235) via the connecting rod (236) and a side face of the fixing disc (133) close to the support structure (220) is fixedly connected to the ultrasonic resonance device (140) so that the fixing disc (133) and the ultrasonic resonance device (140) are driven by the threaded sliding block (235) in the longitudinal extension direction of each fixing rod (134). The system of any one of claims 1 to 6, wherein the ultrasonic resonance device (140) comprises a piezoelectric transducer (141), a positioner (142) and a displacement amplifier (143), the positioner (142) being fixedly connected to the drive device (130) and the displacement amplifier (143) being fixed to one end of the sample (20); the piezoelectric transducer (141), the positioner (142) and the displacement amplifier (143) are connected sequentially, the piezoelectric transducer (141) being configured to convert an electrical signal into a mechanical vibration signal and transmit the mechanical vibration signal to the displacement amplifier (143) via the positioner (142), such that the displacement amplifier (143) amplifies an amplitude of the received mechanical vibration signal and sends a corresponding ultrasonic resonance wave to the sample (20).

8. The system according to any one of claims 1 to 7, wherein the load detection device (120) comprises a load detector (121) and a resonance sleeve (122); the load detector (121) is mounted on the test stand (110), one end of the resonance sleeve (122) is threadedly fixed on the load detector (121), and the other end of the resonance sleeve (122) can be threadedly fixed on the sample (20) when it is brought into contact with the sample (20), so that the ultrasonic resonance device (140), the sample (20), and the load detection device (120) are fixed together by the resonance sleeve (122).

9. The system according to any one of claims 1 to 8, further comprising a computing apparatus (12) and a cooling apparatus (13); the computing apparatus (12) is electrically connected to the peak light source (200), the image capturing apparatus (300) and the ultra-high-speed fatigue testing apparatus (100), for monitoring an operational state of the peak light source (200), the image capturing apparatus (300) and the ultra-high-speed fatigue testing apparatus (100) and obtaining data on an evolution of ultra-high-speed fatigue damage of the sample (20) and the computing apparatus (12) is electrically connected to the cooling apparatus (13) for monitoring the cooling apparatus (13) and applying a cooling treatment to the sample (20) under test.

Images