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Testing device for two-way loading test of material

A test device and two-way loading technology, which is applied in the direction of measuring devices, analysis materials, instruments, etc., can solve the problems of high cost, complex structure of test equipment, limitations, etc., and achieve the effect of simple equipment structure, convenient loading ratio, and reduced test cost

Inactive Publication Date: 2012-02-15
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this test method can choose any loading ratio to test, the application of this method is limited due to the complex structure of the entire test equipment, high cost, and high requirements for the control system.

Method used

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  • Testing device for two-way loading test of material
  • Testing device for two-way loading test of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0030] A test device for bidirectional loading test of materials, its structure is as follows figure 1 Shown, be made of base, lever structure, chuck 11 three parts, base is located at the bottom, and lever structure and chuck 11 are all installed on the base.

[0031] Among them, the bottom connector 1, the chassis 2, the pulley 3 and the slide rail 4 constitute the base; the steel wire 5, the turnbuckle 6, the first level lever 7, the second level lever 8, the third level lever 9 and the top connector 10 A lever structure is formed; the chuck 11 is installed on the slide rail 4 .

[0032] Pulley 3 is provided with 8, is evenly installed on the outer circumference of chassis 2, and slide rail 4 is connected with pulley 3, and bottom connector 1 is arranged on the center of bottom of chassis 2, and bottom connector 1 can connect universal testing machine. The first-level lever 7, the second-level lever 8, and the third-level lever 9 are connected from bottom to top through th...

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Abstract

The invention relates to a testing device for a two-way loading test of a material, which comprises three parts, namely a base, a lever structure and a chuck, wherein the base is arranged at the bottom of the testing device; and the lever structure and the chuck are respectively arranged on the base. Compared with the prior art, the testing device disclosed by the invention has a simple structure, is convenience for maintenance and can be used for conveniently finishing a test object and adjusting the loading proportion; in addition, the testing device can carry out the two-way loading test on a universal testing machine so as to reduce the test cost; and the testing device has the advantages of enough loading precision and the like.

Description

technical field [0001] The invention relates to a material testing device, in particular to a testing device for carrying out a bidirectional loading test on a plate-like sample of a composite material laminate. Background technique [0002] Composite materials are more and more widely used in the field of aviation, but most of the research on the strength of composite materials is still concentrated in the case of unidirectional loading. In practice, in most cases, composite materials are subjected to complex load. Obviously, it is far from enough to only study the strength under unidirectional loading. Whether it is to verify the strength criterion experimentally or to discuss the damage of composite materials under complex stress states from the perspective of damage, it is necessary to conduct bidirectional research on composite material samples. load test. [0003] Biaxial loading test has not yet formed a standardized method. At present, bidirectional loading test is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00
Inventor 陈秀华史晓辉汪海
Owner SHANGHAI JIAO TONG UNIV
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