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Carbon fiber reinforced composite laminate compression test clamp and test method using same

A technology for reinforced composite materials and compression tests, which is applied in the direction of analyzing materials, using stable tension/pressure to test material strength, strength characteristics, etc., can solve problems such as lack of accuracy, and achieve slipping avoidance, simple structure, and improved The effect of accuracy

Inactive Publication Date: 2014-04-30
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of carbon fiber reinforced composite material laminate compression test fixture and test method thereof, this test fixture and test method have overcome existing composite material compressive performance test technique, often visually check its neutrality, thereby can not Defects with higher precision

Method used

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  • Carbon fiber reinforced composite laminate compression test clamp and test method using same
  • Carbon fiber reinforced composite laminate compression test clamp and test method using same
  • Carbon fiber reinforced composite laminate compression test clamp and test method using same

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] Such as Figure 1-4 , a carbon fiber reinforced composite laminate compression test fixture, the special fixture includes a wedge-shaped clamp block 1, an indenter 2, a guide box 3, a U-shaped opening gauge block 4; the wedge-shaped clamp block 1 is a wedge-shaped structure, and is connected to the pressure The wedge-shaped mouth of the head 2 is matched; the inside of the indenter 2 is a wedge-shaped mouth and the outside can slide along the guide box 3; the guide box 3 is the shell of the experimental fixture, and its upper surface has holes for the test process. To observe the damage of the test piece, the wedge-shaped clamp block 1 and the indenter 2 are both placed in the guide box 3, and the guide box 3 can ensure the centering of the test piece.

[0020] Such as Figure 5 As shown, the U-shaped opening gauge block 4 has a U-shaped opening, and...

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Abstract

The invention provides a carbon fiber reinforced composite laminate compression test clamp and a test method thereof. The clamp comprises a wedge-shaped clamp block, a pressure head with the interior matched with the wedge-shaped clamp block and the exterior capable of sliding along a guide box, the guide box used for arranging the wedge-shaped clamp and the pressure head, a gasket used for adjusting a gap between two sides, and a U-shaped opening gauge block with the thickness equal to the scale distance of a tested piece. The invention further provides a compression test method using the clamp. According to the compression test clamp, the concentricity of a loading center line and a center line of a test piece is guaranteed, the phenomenon of slip is avoided, and the test accuracy and the data accuracy are improved.

Description

technical field [0001] The invention relates to a compression test fixture and a test method, belonging to the technical field of macroscopic mechanical performance testing. technical background [0002] With the development of science and technology, composite materials are widely used in various fields, such as aerospace, automobiles, ships, construction, etc., due to their advantages such as light weight, high specific strength, fatigue resistance, and corrosion resistance. Common composite materials include carbon fiber reinforced composite materials, glass fiber reinforced composite materials, polymer fiber reinforced composite materials, etc. Due to the wide application of composite materials, the performance testing of composite materials has also received more and more attention. Compression test is a test to determine the mechanical properties of materials under the action of axial static pressure, and is one of the basic methods of material mechanical performance t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01N3/08
Inventor 龙连春齐文文王亭亭
Owner BEIJING UNIV OF TECH