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Shearing strength testing method of combination surface between materials

A test method and technology of joint surface, applied in the direction of using stable tension/compression to test the strength of materials, etc., can solve the problem of shear strength data deviating from the true shear strength and other problems

Inactive Publication Date: 2013-08-07
JILIN UNIV
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Problems solved by technology

[0009] In order to overcome the problem that the shear strength data measured by existing such methods deviates from the real shear strength of the joint surface of two materials, the task of the present invention is to propose a new real shear strength of the joint surface of two materials. Shear strength test method, using this method, can ensure that the shear strength data obtained by the test is as close as possible to the real shear strength of the joint surface of the two materials

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  • Shearing strength testing method of combination surface between materials

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Embodiment Construction

[0014] In the drawings, the upper end tension (1) acts on the upper end material (2), the lower end tension (5) acts on the lower end material (4), the lower end of the upper end material (2) is opposite to the upper end of the lower end material (4), The materials (3) on both sides connect the upper material (2) and the lower material (4) through four joint surfaces (6).

[0015] On the material testing machine, the upper tensile force (1) passes through the upper material (2), and the lower tensile force (5) transmits the tensile force to the four joint surfaces (6) through the lower material (4). At this time, the four bonding surfaces (6) are simultaneously subjected to pure shear force.

[0016] When the tension rises to a certain limit value, one of the four bonding surfaces will be the first to undergo pure shear failure. At this time, the equipment connected to the material testing machine will record this maximum tensile value F.

[0017] The area S of the damaged j...

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Abstract

The invention relates to a shearing strength testing method of a combination surface between materials. The method can be used for testing the real shearing strength of the combination surface between materials and can be conveniently executed on various universal material testing machines. The shearing strength testing method of combination surface between materials is used for testing the shearing strength of the combination surface between materials to avoid additional bending moment of the combination surface between materials caused by different centers of tension applied at the two ends of a prepared test sample in a testing process, thereby ensuring the accuracy of the shearing strength testing result of the combination surface between materials.

Description

technical field [0001] The invention relates to a method for testing the shear strength of the joint surface between materials. This method can assess the real shear strength of the bonding surface between materials, and can be conveniently implemented on various universal material testing machines. Using a test method for the shear strength of the joint surface between materials to test the shear strength of the joint surface between materials can avoid the difference in the center of the tensile force applied to the two ends of the prepared sample during the test process. The joint surface of the material brings additional bending moment, thus ensuring the accuracy of the test results of the shear strength of the joint surface between the materials. technical background [0002] The disclosed test method for the shear strength of the joint surface between materials is as follows: firstly, the parts of the upper and lower two materials are lapped together, and some process...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
Inventor 王瑛玮
Owner JILIN UNIV