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Composite material interlaminar shear test fixture

A composite material layer and shear test technology, which is applied in the field of composite material interlayer shear test fixtures, can solve the problems of inaccurate test results and displacement.

Inactive Publication Date: 2018-01-26
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since the sample may be displaced during the test, the load on the sample will deviate from the center of the sample, or the sample may be deformed during the test, and the load on the sample will change at this time, thus May make test results imprecise

Method used

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  • Composite material interlaminar shear test fixture
  • Composite material interlaminar shear test fixture
  • Composite material interlaminar shear test fixture

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Embodiment Construction

[0024] 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 a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] figure 1 A schematic diagram of a composite laminate, in figure 1 Among them, l is the length of the composite laminate, h is the thickness of the composite laminate, and b is the width of the composite laminate.

[0026] On the composite laminate, a pure shear load is applied from the width direction. When the composite laminate is delam...

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Abstract

The invention discloses a composite material interlaminar shear test fixture. The fixture comprises a base, two support bases and a loading head. The base comprises a sliding slot. The two support bases are fixed in the sliding slot and can slide in the sliding slot. The two support bases have the same height. The top surface of each support base is arc. The length of the top surface of each support base is greater than the maximum width of a sample suitable for the test device. The top surface of each support base comprises at least one positioning pin. The positioning pin can slide along thelength direction of the top surface of the support base. Each support base comprises a fastening member for fixing the positioning pin. The top surface of the loading head is arc. The composite material interlaminar shear test device can improve a precision of the composite material interlaminar shear test.

Description

【Technical field】 [0001] The invention relates to non-metal detection technology, in particular to a composite material interlayer shear test fixture. 【Background technique】 [0002] Composite materials are composed of two or more materials with different properties, which are composed of materials with new properties in the macro (or micro) through physical or chemical methods. Among them, composite laminates reinforced with fabrics, due to their relatively stable geometry, have better mechanical balance, smaller in-plane anisotropy, and in-plane shear strength higher. In addition, it also has the advantages of simple processing and low manufacturing cost, showing good application prospects. [0003] However, due to the structural characteristics of composite laminates, their interlaminar shear strength is low. Interlaminar shear strength refers to the strength limit of composite laminates under pure shear load, and interlaminar shear strength is an important index for e...

Claims

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Application Information

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IPC IPC(8): G01N3/04G01N3/24
Inventor 刘芳刘平滕瑞郭子静朱慧芳韩煜李红莲唐健
Owner AECC AVIATION POWER CO LTD
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