Stretching clamping device used for nonmetal material stretching mechanics performance testing

Abstract

The present invention disclosed a tension gripping device for testing tension mechanical property of non-metal material. When said gripping device is used, it is fixedly connected with one end portion of dumbbell-like standard sample. Said gripping device includes a plate-shaped main body with upper surface and lower surface, in the main body a recessed zone extended toward lower surface from upper surface is limited, and said recessed zone has an opening end positioned on side of said main body, and the form and size of said zone are basically identical to that of end portion of standard sample.

Description

technical field [0001] The invention relates to a clamp used in measurement technology, more specifically, the invention relates to a tensile clamp used for testing the tensile mechanical properties of non-metallic materials. Background technique [0002] With the wide application of various non-metallic materials in aviation, aerospace, energy, electrical, chemical, transportation, medical and other fields, it is very important to study the mechanical properties of non-metallic materials. [0003] The entire material mechanical performance test is carried out on the Reger electronic universal testing machine equipped with a normal temperature mechanical measurement system and a self-developed low temperature mechanical test system. The data is controlled and collected by connecting to a computer with high-precision and high-sensitivity instruments. Tensile test fixture is one of the key components to measure the tensile mechanical properties of materials. During the test, ...

AI Technical Summary

Problems solved by technology

[0006] 1) The fixture is not easy to install at low temperature, and it is destructive to the sample;

[0007] 2) When measuring the tensile properties of the material at low temperature, due to the special properties of the sample material in the low temperature environment, slippage will occur between the clamp and the sample; and it is impossible to clamp in a closed low temperature environment, etc., Therefore, it is not suitable for use in low temperature environment;

[0008] 3) The fixture generally has a complex structure and a large volume

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