95 results about "Universal testing machine" patented technology

The invention belongs to the technical field of material testing, and discloses a connecting assembly of a high and low temperature test box universal testing machine, which comprises a bearing assembly, two clamping assemblies are arranged in the bearing assembly, the bearing assembly comprises a support frame, the support frame is connected with a test box, two partition plates are connected in the test box, and the two partition plates are arranged on the support frame. The test box is internally provided with a test cavity, the test cavity is located between the two partition plates, the two clamping assemblies move in the test cavity, and adaptation to test pieces of different specifications is achieved through cooperation of the multiple assemblies. A telescopic part in the bearing assembly can adjust the distance between the two clamping assemblies to meet the requirements of test pieces with different lengths; the restraining block of the clamping assembly slides along the sliding groove, and the diameter of the threaded cavity can be changed to adapt to test pieces with different diameters. Meanwhile, the tapping part can adjust tapping parameters according to the material of the test piece, and is matched with a constraint block pressure sensor for monitoring, so that the tapping effect of the high-hardness test piece is ensured, and stable clamping of the test pieces of various sizes and materials is realized.

The utility model discloses an electric servo control universal testing machine which comprises a base, a pressure detection table is arranged in the base, a supporting plate is arranged in the side direction of the base, and supporting frames are arranged at the two ends of the supporting plate. A downward pressing push plate is arranged on the inner side wall of the supporting plate, a first sliding rail and a second sliding rail are arranged on the side wall of the supporting frame from inside to outside, a first protection frame is arranged on the first sliding rail in a sliding mode, and a second protection frame is arranged on the second sliding rail in a sliding mode; the first protection frame and the second protection frame are arranged, and the sliding stroke of the second protection frame is higher than that of the first protection frame, so that scrap splashing caused by material crushing in the test process is effectively prevented. By means of the double-layer protection design, the risk of injury to surrounding equipment and workers can be greatly reduced, and the safety of the test process is improved. Splashed chippings have large kinetic energy and are prone to damaging a testing machine and other peripheral equipment.

This utility model discloses a device for testing the riveting strength of eccentric bolts, including a universal testing machine, a base, and a sleeve. The base is placed on the testing platform of the universal testing machine. The base has a threaded hole at its central axis for screwing in the shank of the eccentric bolt. The sleeve has a through hole for the head of the eccentric bolt to pass through. A gap is left between the inner wall of the through hole and the outer wall of the head of the eccentric bolt. After the sleeve passes through the head of the eccentric bolt, it contacts the washer of the eccentric bolt and applies vertical pressure to the washer of the eccentric bolt under the action of the loading head of the universal testing machine. The advantages are that it can quickly and accurately measure the riveting strength of bolts, is easy to operate, and provides reliable test data.

The application provides a controllable simple heating compensation device and a test block pressurization and temperature control experiment method, and relates to the technical field of material mechanics experiment equipment. The device takes a heating gun as a heat source, a temperature sensing magnet as a temperature measuring element, cooperates with a temperature control switch with a temperature interval setting to form a temperature control core, and is wrapped with a heat preservation device made of simple heat preservation materials around the pressurization end of a universal testing machine and a test block. Through temperature measurement feedback, the automatic start and stop of the heating gun is realized, the heat loss of the test block is reduced, and the test block is stably kept in the set temperature interval during the whole pressurization process. The application effectively solves the problems of easy temperature fluctuation of the test block and high cost of the existing temperature control device structure in the test block pressurization experiment of the universal testing machine. The overall structure of the device is extremely simple, convenient to install and low in cost, and can ensure the accuracy and reliability of the test block pressurization mechanics experiment data.

The invention relates to the technical field of soil detection, in particular to a device and method for detecting the adhesive force of soil on the soil touch metal surface of an agricultural machine. The device comprises a mounting shell and a sliding strip slidably connected with the mounting shell in the vertical direction, and the bottom end of the sliding strip is rotationally connected with a lower pressing plate; the rotating center line is perpendicular to the sliding direction of the sliding strip. A locking part used for limiting rotation of the lower pressing plate is arranged between the lower pressing plate and the sliding strip. A driving part for driving the sliding strip to slide is arranged in the mounting shell; the sliding strip is provided with a measuring part used for measuring tension and pressure in the length direction of the sliding strip. The bottom of the mounting shell is detachably and fixedly connected with a plurality of supporting legs in a vertical state. The problems that in the prior art, a universal testing machine is large in size, depends on a fixed power source and is difficult to transport to fields such as farmland for detection, and laboratory simulation soil is greatly different from an actual region are solved.

An embodiment of the present invention provides an optical film which has a stiffness index (STI) of 80 to 190, based on a thickness of 50 μm. The Stiff Index is calculated by expression 1 below: [Expression 1] STI=Shore D hardness×tensile modulus. In expression 1, “STI” denotes a stiffness index, the Shore D hardness is a hardness measured using a Shore D durometer, and the tensile modulus is a tensile modulus measured using a universal testing machine.

The utility model relates to the technical field of road tests, and discloses a road base material universal testing machine which comprises a machine base, a conveying base is fixedly installed on the bottom side of the machine base, a filtering box is movably installed on the inner side of the conveying base, and a water accumulation box is installed on the bottom side of the conveying base through bolts. The simulated road is placed on the inner side of the groove in the top side of the machine base, in the using process, through the partition plate, supporting uniformity can be improved, meanwhile, it can be avoided that the simulated road makes direct contact with the groove, and consequently the permeability of simulated rainwater in the later period is reduced; the electric push rod is started to drive the splash-proof cover to move downwards and extrude and limit the periphery of the simulated road, so that the situation that the test precision is influenced by side wings of the simulated road when rainwater is simulated is avoided, and in the rainwater simulation process, a water source is prevented from splashing under the action of the splash-proof cover, and the test efficiency is improved. And the viewing and observation of workers are influenced while the resources are wasted.

This utility model relates to the technical field of adhesion testing devices, specifically a device for measuring the adhesion of polyurethane grouting materials. It includes: a bottom sample stage, a universal testing machine body, and a programmable computer. The bottom sample stage is mounted on the base of the universal testing machine body, and a clamping assembly is mounted on the displacement beam. The device fixes the substrate to be tested in the center of the bottom sample stage, applies polyurethane grouting material to the center of the substrate surface, and places a pre-made Marshall cylindrical mixture specimen on top to allow the grouting material to cure naturally. Four adjusting rods are manually tightened to clamp the Marshall specimen, and the displacement beam is controlled to move upwards at a uniform speed. This device can efficiently and stably test the interfacial adhesion performance between polyurethane grouting materials and different road substrates under controlled temperature and humidity conditions, improving the engineering guidance value and application extrapolation of the experimental results. Furthermore, worn clamping plates can be easily removed and replaced.

The application discloses a kind of concrete asymmetric fatigue test systems based on ultrasonic vibration loading, including universal testing machine, ultrasonic frequency generator, ultrasonic transducer, upper displacement amplifier and lower displacement amplifier and for reducing system loading eccentric moment ball hinge mechanism, the ball hinge mechanism is connected with lower displacement amplifier bottom by clamping connecting disc.This application also provides a kind of concrete asymmetric fatigue test method based on ultrasonic vibration loading, fix the concrete test piece of equal cross section cylinder between upper displacement amplifier and lower displacement amplifier, then open universal testing machine, ultrasonic frequency generator and ultrasonic transducer, realize the ultrasonic vibration asymmetric compression-compression fatigue cycle loading of concrete test piece.The application can realize the asymmetric compression-compression fatigue loading of concrete test piece by ultrasonic fatigue test technology, solve the problem of high time cost in the super-long life fatigue test of traditional concrete fatigue test system.

1. Name of the product in this design: Microcomputer-controlled electronic universal testing machine. 2. Application of this design: For mechanical testing of metals, non-metals and composite materials, including tensile, compression, bending, shearing, peeling, tearing and other tests. 3. The key design feature of this product is its shape. 4. Images or photos that best illustrate the design key points: Combined state reference diagram. 5. Other situations requiring explanation: This product is a component product. Component 1 is the measurement and control cabinet (including computer), component 2 is the host, and component 3 is the host cabinet.

The present invention discloses an electro-assisted tension-compression cyclic loading device and testing method for ultra-thin titanium plates. The device comprises a composite tension-compression specimen, wherein a lateral force is applied to both sides of the composite tension-compression specimen; two pairs of electro-assisted fixtures, respectively clamping both ends of the composite tension-compression specimen, include two oppositely arranged clamping heads. The clamping surface of the clamping heads have a conductive structure, and the conductive structure is connected to an external power source, so that when the composite tension-compression specimen is clamped on the clamping head, the conductive structure contacts the composite tension-compression specimen to transfer current to the composite tension-compression specimen through the conductive structure to heat it. The clamping head is further connected to the loading end of a universal testing machine. The present invention can avoid torsional deformation of the ultra-thin titanium plate specimen during the test.

The application discloses a kind of spring washer elastic performance testing device, belong to spring washer elastic performance testing technical field;Solve the elastic performance testing device of existing spring washer needs additional reliance electronic universal testing machine and other large equipment, the space of test site and the high requirement of related hardware matching, and the problem of complicated operation, low efficiency in test process.The testing device of the application includes fixed base, pressure measurement and pressure display component, step stud, pre-tightening force applying component, pre-tightening force conducting component;The lower end of step stud is fixed on fixed base, and step stud is sequentially penetrated by pre-tightening force applying component, spring washer, pre-tightening force conducting component and pressure measurement and pressure display component from top to bottom.The testing device of the application is simple in structure, low in preparation cost and can load and unload multiple spring washers at a time under specified load, with high testing efficiency.

This invention discloses a precise testing method for the tensile properties of naturally aged SWRH82B steel wire rod, belonging to the field of metallic material performance testing technology. The method includes: sample preparation: selecting 12.5mm SWRH82B steel wire rods from the same batch, removing defects, and processing to uniform dimensions, then naturally aging them at 5℃ for at least 3 weeks; tensile parameter setting: adopting a two-stage control mode, using a strain control rate of 0.02-0.2%S, displacement control for tensile strength Rm testing, and simultaneous recording of reduction of area Z%; standardized testing: performing tensile tests on a microcomputer-controlled electro-hydraulic servo universal testing machine according to preset parameters; result correction: data correction based on the steel wire rod's microstructure, nitrogen and hydrogen content, and surface quality. This invention can accurately reflect the true tensile properties of SWRH82B steel wire rods, is suitable for factory quality control and engineering acceptance scenarios, and is suitable for standardized promotion and application.

The utility model discloses a hydrogen fuel cell carbon paper deformation detection device which comprises a universal testing machine, an experiment pressing block, an experiment cushion block, a polar plate carbon paper stacking structure, a video extensometer, a concentrated light source and a microscope, the polar plate carbon paper stacking structure is arranged between the experiment pressing block and the experiment cushion block, and the universal experiment machine is configured to provide continuously changing packaging force and uniformly transmit the packaging force to the polar plate carbon paper stacking structure through the experiment pressing block and the experiment cushion block, namely, the mechanical environment of carbon paper in a galvanic pile is simulated; the concentrated light source is configured to provide brightness, and the video extensometer and the microscope are configured to observe the form change of the carbon paper in the polar plate carbon paper stacking structure after continuous stress. The device simulates the in-pile mechanical environment through the universal testing machine, and directly observes the real form change of the carbon paper in the flow channel through the optical detection technology, thereby being beneficial to improving the cognition on the internal structure of the electric pile and guiding the design of the electric pile.

The present application provides a kind of multiple injection shear sample forming die, by setting first cavity and second cavity of terminal overlap, and the switching slider that can realize first cavity and second cavity communication or separate, and the switching insert that realizes second runner and second cavity communication or disconnect, can complete in sequence in two cavity respectively independent injection molding, and in two cavity overlapping portion (double cavity) realize twice injection remelt, form fusion interface, obtain shear sample;The shear sample obtained is stretched by universal testing machine Shear test, and the shear strength is obtained, which is used to evaluate the performance of the fusion interface formed by the insert injection molding of any two materials. The influence law of different factors on the performance of the fusion interface obtained by the experiment can be used to guide the actual product production.

The invention relates to the technical field of universal testing machines, in particular to a clamping device for a universal testing machine. Comprising a machine body with an upper cross beam and a lower cross beam, clamps are arranged on the upper cross beam and the lower cross beam respectively, at least one clamp comprises a shell with an opening in the upper end, a transmission block driven by a lifting mechanism is installed in the shell and provided with a wedge-shaped groove with an opening in the upper end, and a left clamping block and a right clamping block are installed in the wedge-shaped groove. The left side surface of the left clamping block and the right side surface of the right clamping block are consistent with the left surface and the right surface of the wedge-shaped groove in inclination angle, and the width of the lower bottom of each clamping block is smaller than 1 / 2 of the width of the lower bottom of the wedge-shaped groove and larger than 1 / 2 of the width of an upper end opening of the wedge-shaped groove. Transverse connecting structures are arranged on the two sides of the upper portions of the two clamping blocks, transverse guide grooves are formed in the upper end of the shell, and the outer ends of the transverse connecting structures are located in the transverse guide grooves and matched with springs in the transverse guide grooves. According to the invention, universal, efficient and reliable clamping of various samples is realized, and the accuracy and repeatability of testing are improved.

The utility model discloses a clamp tool for a dental implant pull-out test, which comprises an upper clamp and a lower clamp, the upper clamp is connected with a dental implant and is used for fixing the dental implant, and the lower clamp is used for fixing an artificial dental bone block; the lower clamp comprises an upper cover body and a lower cover body which are detachably connected, the upper cover body and the lower cover body are combined in a covering mode, a containing cavity is formed in the upper cover body and the lower cover body, a first hole is formed in the upper cover body, and a clamping part is arranged on the end face of the lower cover body; the upper clamp comprises a bolt and a scanning rod. The end, away from the bolt, of the scanning rod is provided with a second section. An artificial tooth bone block is arranged in a containing cavity of a lower clamp, a scanning rod is inserted into a first hole and assembled at the upper end of a dental implant through a bolt, during testing, an upper clamping head of a universal testing machine clamps the scanning rod, and a lower clamping head of the universal testing machine clamps a clamping part for testing, so that the problem that in the prior art, the scanning rod is clamped by a clamping part is effectively solved; the technical problem that the artificial tooth bone block is easily broken due to the fact that the universal testing machine directly clamps the artificial tooth bone block is solved, and the testing efficiency is greatly improved.

The invention relates to the technical field of residual stress nondestructive testing, in particular to a post insulator interface residual stress nondestructive testing system and method. Comprising a sample A used for selecting ultrasonic frequency, a sample B used for calibrating the acoustic elastic coefficient of epoxy resin, a universal testing machine, an ultrasonic generator, an ultrasonic probe, an acoustic coupling module and a signal acquisition and analysis mechanism, the acoustic coupling module is arranged on the ultrasonic probe, the ultrasonic probe is connected with the ultrasonic generator, and the ultrasonic generator is connected with the signal acquisition and analysis mechanism. The ultrasonic probes are arranged on the two sides of the sample A and the sample B or one side of the post insulator metal insert, and the universal testing machine is used for applying pressure to the sample B. The method realizes lossless and quantitative detection of the epoxy resin interface residual stress, and solves the problems that the post insulator has a blind area on the epoxy resin interface around the metal insert and the sound time cannot be determined by the existing signal processing method.

The invention belongs to the field of biomedicine, discloses a porous bone screw design and fixation performance evaluation method based on additive manufacturing, and realizes integration of design and evaluation of a porous bone implant. The porous bone screw is of a cylindrical main body and a radial gradient porous structure with the porosity gradually increased (40%-70%) from the center to the periphery, and the porous bone screw can be prepared by adopting Ti6Al4V spherical powder through SLM forming through three-dimensional software parametric modeling (a Diamond / Voronoi / Gyandroid structure can be selected, and the porosity is controlled by adjusting the rod diameter / wall thickness). The matched drawing testing device comprises a screw clamping and fixing device (two-step-shaped blind holes with special-shaped blind holes) and a bone tissue clamping and fixing device (pull ring type and testing machine clamp), and is connected with the electronic universal testing machine; the test method comprises the following steps: pre-tapping and screwing into the simulated bone tissue, clamping and fixing, applying an axial load at a constant speed, and recording the maximum pullout force to evaluate the fixing performance. The porous structure optimizes the biomechanical property, the device is high in adaptability and reliable in test, and the research, development and test efficiency is greatly improved.

The invention relates to the technical field of rock mass mechanics experiment devices, and discloses an anisotropic rock mass multi-angle loading clamp adaptive to a universal testing machine, an adaptive assembly comprises an upper adaptive plate and a lower adaptive plate, the upper adaptive plate is used for being matched and connected with an upper pressure head of the universal testing machine, and the lower adaptive plate is used for being matched and connected with a lower pressure head of the universal testing machine; the lower adapter plate is used for being matched and connected with a working table of the universal testing machine; the rotating assembly comprises an upper rotating table and a lower rotating table which are rotationally connected, the lower rotating table is rotationally matched with the lower adaptive plate, angle scale marks are arranged on the upper rotating table, rock sample fixing grooves for placing rock samples are formed in the upper rotating table and the lower rotating table, and limiting pieces for limiting displacement of the rock samples are arranged in the rock sample fixing grooves; the positioning assembly is arranged between the upper adaptation plate and the lower rotating table and used for fixing the rotating angle of the lower rotating table, the teaching experiment budget and operation requirements are met, and the problems that an existing clamp is complex in operation and high in cost, and equipment needs to be modified are effectively solved.

The utility model belongs to the technical field of universal testing machines, and particularly relates to a clamping tool of an electronic universal testing machine, which comprises a support plate, an adjusting mechanism fixedly connected above the support plate, clamping mechanisms fixedly connected above the support plate and on two sides of the adjusting mechanism, a movable clamp fixedly connected above the adjusting mechanism, and a clamping mechanism fixedly connected above the movable clamp. The clamping mechanism is hinged to the movable clamp. The clamping tool of the electronic universal testing machine has the advantages that the motor drives the first lead screw and the second lead screw to rotate at the same time, the distance between the two clamping jaws is adjusted, and therefore the clamping tool is suitable for testing samples of different sizes and shapes; the clamping jaw is hinged to the connecting base, meanwhile, the linear telescopic device is hinged to the connecting rod, a push rod of the linear telescopic device is pushed out or contracted, a test sample is clamped by the clamping jaw, and the clamping effect is improved; by adjusting the first lead screw, the second lead screw and the linear telescopic device and adjusting the clamping jaws to clamp a test sample, the loosening possibility is reduced, and therefore the accuracy of a test result is improved.

The invention provides a solid-state battery measurement method, device and system, electronic equipment and a storage medium, and the method is applied to the solid-state battery measurement device of the solid-state battery measurement system, and comprises the steps: controlling a lower pressing head to carry out pre-compression, and carrying out the pre-compression based on the longitudinal displacement data of a first linear displacement sensor; performing reading zero setting on the electronic universal testing machine, the first linear displacement sensor and the second linear displacement sensor; the lower pressing head is controlled to conduct staged compression, and pressure data, longitudinal displacement data and transverse displacement data of the compression grades are obtained after compression of each compression grade is finished; and calculating the compression modulus and Poisson's ratio of the solid-state battery cell based on the initial size of the solid-state battery cell, the pressure data of each compression level, the longitudinal displacement data and the transverse displacement data. Therefore, through a measurement structure of synchronous acquisition of pre-compression zeroing and longitudinal and transverse deformation, errors caused by zero drift and a contact gap are effectively eliminated, and the measurement precision of mechanical parameter measurement of the solid-state battery is improved.

The present application relates to the technical field of workpiece fatigue test, and relates to an automatic fatigue test method and system of a horizontal electronic universal testing machine, which comprises the following steps: performing impact test on a test workpiece by using the horizontal electronic universal testing machine according to an initial impact impulse, obtaining a fatigue life set, calculating a fatigue life dispersion degree, judging whether the fatigue life dispersion degree meets a dispersion standard, if not, calculating an iteration test density, calculating an iteration impact impulse set according to the iteration test density and the initial impact impulse, updating the initial impact impulse sequence by using the iteration impact impulse set, and if yes, performing fitness evaluation on the test workpiece. The present application can improve the fatigue test precision of the horizontal electronic universal testing machine.

The utility model relates to a clamping device for an axial tensile test of a composite material pipe. Comprising a core rod, a split type expansion sleeve and a split type contraction sleeve, the core rod comprises a connecting section, a middle section and a conical section which are connected in sequence and used for being connected with a universal testing machine, and a limiting table is arranged at the joint of the conical section and the second middle section; the inner wall of each split type expansion sleeve is provided with a binding face and an abutting table abutting against the corresponding limiting table, and the outer wall of each split type expansion sleeve is provided with an outer boss. One end of each split type contraction sleeve is circumferentially provided with a lap joint plate which transversely extends inwards, and a contraction gap is formed between every two adjacent split type contraction sleeves; according to the clamping device for the axial tensile test of the composite material pipe, the technical problem that in the prior art, a petal-shaped friction inner sleeve for clamping a sample is prone to falling off is solved through the structural design of the clamping device for the axial tensile test of the composite material pipe.

The application provides a testing tool and testing method for axial extrusion connection force of a conduit, and relates to the technical field of metal conduit connection, and comprises a base with a base limiting groove on an upper end face, an adjusting bolt, a pressure plate accommodated in the base limiting groove, a positioning ring axially inserted on an upper end face of the pressure plate, and a chuck and a pressure column accommodated in the positioning ring, and a part of the pressure column extends out of an upper end face of the positioning ring, the base has a base limiting boss, and an inner surface of the base limiting boss is provided with a thread, the pressure plate is provided with a positioning groove, and the positioning ring is provided with an observation viewport on a cylindrical side face. The tool is applied to an electronic universal testing machine, is suitable for axial extrusion pipe joints of different size specifications, provides the required extrusion force value for a connection tool of the pipe joint, realizes a leap from theory to reality research of domestic axial extrusion connection technology, and greatly promotes the research progress of the domestic pipe joint.

The utility model discloses a pneumatic clamp applied to a universal testing machine, which relates to the technical field of pneumatic clamps and comprises a pneumatic control component, a pneumatic clamping component and a pneumatic clamping component, the input end of the clamp air cylinder is connected with a branch port of the pneumatic control component, and the output end of the clamp air cylinder can stretch out and draw back under the control of the pneumatic control component; the clamping part comprises a movable clamping piece, a driven clamping piece and a connecting part which are stacked in sequence, a sliding rod penetrates through the movable clamping piece, the driven clamping piece and the connecting part, one end of the sliding rod is connected with the outer wall of the clamp air cylinder, and the other end of the sliding rod extends out of the connecting part and is fixed through a nut; the end, away from the driven clamping piece, of the movable clamping piece is connected with the output end of the clamp air cylinder. A clamping action part is arranged between the movable clamping piece and the driven clamping piece. A test sample with a larger width can be clamped, so that the test sample is not easy to break and incomplete; and meanwhile, the clamping force can be regulated and controlled by controlling the air pressure.

This invention discloses a method for testing the bending toughness of high-alumina resistance alloy wire rods, aiming to quickly and cost-effectively evaluate the bending toughness and resistance to brittle fracture of the wire rods before they leave the factory. The testing method includes the following steps: (1) Sample preparation: Using a pipe bender or other bending equipment, a straight section of high-alumina resistance alloy wire rod is processed into a sample with a specific geometric shape. This sample should include at least one, preferably three, consecutive bends; (2) Mechanical testing: The prepared sample is subjected to axial tension at a constant speed on a universal testing machine or tensile testing machine until it fractures; its fracture strength is calculated; (3) Performance judgment: The test is repeated at least three times, the average fracture strength is calculated, and compared with the reference average fracture strength of the batch of wire rods before pickling treatment for judgment. This invention has the following significant advantages: (1) High predictability; (2) Low cost; (3) Simple and rapid operation; (4) High reliability.

An umbilical cable small-scale model disclosed by the present invention comprises a cylinder, steel wires, bases and a sheath, the number of the bases is two, the bases are arranged at the two ends of the cylinder respectively, one base is fixed at one end of the cylinder, the other base is arranged at the other end of the cylinder in a sliding manner, the number of the steel wires is multiple, and the steel wires are wound on the cylinder through the two bases. And the sheath is fixedly sleeved outside the cylinder wound with the steel wire. The invention further provides a testing device for the small-scale model of the umbilical cable, the testing device is provided with the universal testing machine used for carrying out compression testing on the small-scale model of the umbilical cable and the compression device, and the compression device comprises an upper pressing disc arranged on the universal testing machine in a lifting mode through an upper connector and a lower pressing disc movably arranged on the universal testing machine through a spherical seat. And the lower pressure plate and the upper pressure plate are matched to carry out a pressing test of the umbilical cable model. According to the method, the mechanical property test can be completed without large equipment and test places, the mechanical property of the full-size umbilical cable can be reflected, and the method has the characteristics of good economical efficiency, low equipment requirement, repeatability and the like.

This invention discloses a quantitative analysis method for asphalt-aggregate interface failure behavior based on image processing, belonging to the field of road engineering. The method includes the following steps: conducting pull-out tests on the asphalt-aggregate interface using a universal testing machine to obtain stress-strain curves, extracting evaluation indicators based on the stress-strain curves, and calculating the cohesive failure behavior test results based on the evaluation indicators; acquiring images of the failure interface of the hybrid failure specimen using digital image processing methods, identifying and calculating the area ratio of the cohesive failure region to the adhesive failure region based on the acquired images; and calculating the evaluation indicator results of the adhesive failure region based on the cohesive failure behavior test results and the area ratio, thereby achieving a quantitative expression of the asphalt-aggregate interface bonding failure behavior.

A mounting rack is fixed on the upper surface of a control electric cabinet, a ball screw guide rail device is fixedly mounted on the left side of the mounting rack, a heating furnace is connected with a screw nut bolt through a heating furnace mounting arm, a sample hanging rod is fixed to the top of the mounting rack, and a loading device is placed under the sample hanging rod. A sample sequentially penetrates through the loading device and a sample hole of the sample hanging rod, the bottom end of the adjustable loading device is provided with a weight disc, and a displacement sensor is fixedly installed below the weight disc. Through the integrated mechanical design of the lifting heating furnace and the special furnace door, on the premise of ensuring the centering precision and the operation convenience of the sample, the table type high-temperature bending creep testing function which is compact in structure, low in cost and reliable in sample centering is realized; the device effectively fills the market blank between a large-scale high-end universal testing machine and a simple laboratory self-made device, and is particularly suitable for research and development scenes of teaching demonstration, conventional quality detection of enterprises and rapid evaluation of the high-temperature bending creep performance of materials.