Improved composite material matrix/fiber interface shearing performance test device and test method thereof

A composite material and test device technology, which is applied in the direction of applying stable shear force to test the strength of materials, etc., can solve the problems of inaccurate measurement and difficulty in ensuring the verticality of fibers, etc., and achieve the effect of operation controllability and operation

Active Publication Date: 2019-12-10
大连宇晨高新材料有限公司
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Problems solved by technology

[0012] According to the above-mentioned technical problems such as the difficulty in ensuring the verticality of the fiber in the existing device and the inaccurate measurement due to the large deviation of the interface adhesion and detachment force, an improved test device for the shear performance of the matrix / fiber interface of the composite material is provided. its test method

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  • Improved composite material matrix/fiber interface shearing performance test device and test method thereof
  • Improved composite material matrix/fiber interface shearing performance test device and test method thereof
  • Improved composite material matrix/fiber interface shearing performance test device and test method thereof

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Embodiment Construction

[0039] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...

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Abstract

The invention provides an improved composite material base / fiber interface shearing performance testing device which is characterized by comprising a clamp A and a clamp B. The clamp A and the clamp Bare provided with hollow rectangular frame structures, at least one set of grooves / protrusions are formed in one side wall of each rectangular frame structure, and a hole is further formed in the middle of the side wall of each rectangular frame structure. The side wall of the rectangular frame structure adjacent to the side wall provided with the groove / bulge is provided with a side hole for injecting a high-temperature-resistant adhesive / polymer resin material; after the clamps A and B are clamped and fixed through grooves or ptrotusions arranged on the clamps A and B, the two middle holesform a through hole through which a single carbon fiber passes; the fixed clamps A and B are located in the same plane, a hard plastic sheet is attached to the side face of the side, provided with thehollow rectangular frame, of each clamp A, and a hard paperboard is attached to the side face of the other side of each clamp B, so that the clamps A and B form a semi-closed cavity structure. The invention further discloses a testing method of the testing device. The testing device has the advantages of being simple in structure, high in controllability, convenient to operate and the like.

Description

technical field [0001] The invention relates to the technical field of performance testing of composite materials, in particular, to an improved test device for the shear performance of the matrix / fiber interface of composite materials and a test method thereof, which is used to measure the shear performance of the matrix / fiber interface in composite materials Shear properties, which are the basis of composite structure design, include interface average shear modulus and interface average shear strength. Background technique [0002] At present, there are mainly four test methods for determining the shear performance of the matrix / fiber interface of composite materials: fiber fracture test, fiber pull-out test, fiber intrusion test and bead debonding test. Among them, the fiber pull-out test is one of the most direct methods to obtain interface parameters, and a variety of interface parameters can be obtained in one test. [0003] The preparation process of the single-filam...

Claims

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Application Information

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IPC IPC(8): G01N3/24
CPCG01N3/24
Inventor 刘永涛张笑闻姜海林常文钰任明法
Owner 大连宇晨高新材料有限公司
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