High-precision interface bond strength testing device and method
A technology of interface bonding and strength testing, which is applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve the problems of extremely high test conditions, inconvenient operation, and difficult control of the ejection method, and achieve self-adaptive vertical calibration, The effect of improving test accuracy
Active Publication Date: 2019-08-23
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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Abstract
The invention discloses a high-precision interface bonding strength testing device and method, which solves the problems in the prior art that it is difficult to realize fiber self-adaptive calibration and low test accuracy, and has the ability to realize self-adaptive vertical calibration of the fiber drawing direction, Thereby greatly improving the beneficial effect of the test accuracy of the interface bond strength, the technical scheme is: including the upper clamping device and the lower clamping device, the upper clamping device is clamped on the upper beam of the electronic universal testing machine, the upper clamping device A beam is set on the upper surface, and key grooves are set on both sides of the upper surface of the upper clamping device. The beam is connected to the roller through a pin shaft, and the roller can roll in the key groove; the middle part of the beam is connected to the fiber clamping device through a fastener, and the fiber clamping The lower part of the device clamps the fiber to be tested; the lower clamping device is correspondingly arranged below the upper clamping device, and the lower clamping device is clamped on the electronic universal testing machine. The lower clamping device is provided with a T-shaped groove, and the fiber to be tested The bottom has a nut, and the nut is a transition fit with the T-slot.
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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IPC IPC(8): G01N19/04
Inventor 尹纪财边炳传葛媛媛戴汉政赵仁高
Owner TAISHAN UNIV