Material mechanics property testing device

Abstract

The invention discloses a material mechanics property testing device which comprises a microscope for observing the middle position of a sample and an in-situ tensile tester. The in-situ tensile tester comprises a driving unit, wherein the driving unit is connected with a sample tensile unit through a driving unit, the sample tensile unit is connected with a load testing device for testing a tensile force of a sample, a deformation detecting device for measuring sample deformation is connected with the sample tensile unit, and the load testing device and the deformation detecting device are connected with a controller. Due to the fact that a test is performed under the microscope, the whole stress process of the sample can be observed through the microscope, the material mechanics property testing device can conduct whole-process dynamic monitoring on the microcosmic deformation damages of a material under a microimaging system, and thus synchronism of mechanics property testing and microtopography observation can be achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical testing, in particular to a device for testing mechanical properties of materials. Background technique [0002] The mechanical performance test of materials is a test to determine the characteristics of materials such as tension, compression, and bending. Traditional material performance tests are carried out on large-scale testing machines. The test is carried out on a large-scale testing machine, and the material is drawn from the initial stress to the final pull-off, and the stress- The strain curve can be used to obtain the yield limit and strength limit of the material. In this test process, the synchronization of material tensile test and microscopic morphology observation is not involved, and there is a lack of in-depth research on the law of material morphology changes in the process of material damage. [0003] Therefore, how to provide a material mechanical property testing device th...

AI Technical Summary

Problems solved by technology

[0002] The mechanical performance test of materials is a test to determine the characteristics of materials such as tension, compression, and bending. Traditional material performance tests are carried out on large-scale testing machines. The test is carried out on a large-scale testing machine, and the material is drawn from the initial stress to the final pull-off, and the stress- The strain curve can be used to obtain the yield limit and strength limit of the material. In this test process, the synchronization of material tensile test and microscopic morphology observation is not involved, and there is a lack of in-depth research on the law of material morphology changes in the process of material damage.

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