Device and method for testing bonding strength of high-precision interface
A technology for interfacial bonding and strength testing, which is used in measuring devices, mechanical devices, instruments, etc., which can solve the problems of inconvenient operation, extremely high test conditions for the ejection method, and difficulty in realizing fiber self-adaptive calibration with the single-fiber pulling method. problem, to improve the test accuracy and achieve the effect of self-adaptive vertical calibration
Active Publication Date: 2017-11-03
TAISHAN UNIV
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Problems solved by technology
The critical fracture length method has extremely high requirements on sample preparation, and has certain requirements on the properties of the matrix material, so its application range is limited; the single fiber extraction method is not easy to achieve fiber self-adaptive calibration; the micro-debonding method has extremely high requirements on sample preparation and is inconvenient to operate; The ejection method has extremely high requirements on the test conditions and is difficult to control
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[0040] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0041] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. In addition, it should also be understood that when the terms "comprising" and / or "comprises" are used in this specification, it indicates the presence of features, steps, operations, means, components and / or their combination.
[0042] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a high-precision interface bond strength t...
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The invention discloses a device and a method for testing the bonding strength of a high-precision interface, solves the problems that fiber self-adaptive calibration is unlikely to realize and the testing precision is low in the prior art, and has the beneficial effect that self-adaptive vertical calibration in the fiber drawing direction is realized, so that the testing precision of the bonding strength of the interface is greatly improved. Through the technical scheme, the device comprises an upper clamping device and a lower clamping device, the upper clamping device is clamped to an upper cross beam of an electronic universal testing machine, a cross beam is arranged on the upper surface of the upper clamping device, key grooves are formed in two sides of the upper surface of the upper clamping device, the cross beam is connected with rollers through hinge pins, and the rollers can roll in the key grooves; the middle part of the cross beam is connected with a fiber clamping device through a fastener, and a fiber to be tested is clamped at the lower part of the fiber clamping device, the lower clamping device is correspondingly arranged below the upper clamping device, the lower clamping device is clamped in the electronic universal testing machine, a T-shaped groove is formed in the lower clamping device, a nut is arranged at the bottom of the fiber to be tested, and the nut is in transition fit with the T-shaped groove.
Description
technical field [0001] The invention relates to the technical field of material performance testing equipment, in particular to a high-precision interface bonding strength testing device and method. Background technique [0002] The application of fiber-reinforced composite materials is more and more extensive, and there are more and more researches on fiber-reinforced composite materials. Interfacial bond strength is an important indicator of the performance of fiber-reinforced composites, and the accuracy of its measurement technology is related to the performance of fiber-reinforced composites to a certain extent. [0003] Traditional interfacial bond strength tests mostly use the critical breaking length method, single fiber pull-out method, micro-debonding method and ejection method. The critical fracture length method has extremely high requirements on sample preparation, and has certain requirements on the properties of the matrix material, so its application range i...
Claims
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Login to View More IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 尹纪财边炳传葛媛媛戴汉政赵仁高
Owner TAISHAN UNIV