Micro material mechanical performance testing platform under stretching-bending-twisting multi-loads

Abstract

The invention relates to a micro material mechanical performance testing platform under stretching-bending-twisting multi-loads, and belongs to the field of electromechanics. The micro material mechanical performance testing platform comprises a tension and compression module, a bending module, a twisting module, a detection control module and a test-piece clamping module, wherein the testing platform takes the tension and compression module as a basic function module; the twisting module is arranged at one end of the tension and compression module; the test-piece clamping module is arranged on the tension and compression module; the bending module is independently arranged at one side of a portal frame. The micro material mechanical performance testing platform can be taken as a material mechanical performance test device with an independent stretching/compressing mode or an independent bending mode or independent twisting mode, namely a single load testing mode, and can be applied to a material mechanical performance test of a twisting load under the given stretching/compressing stress level or a material mechanical performance test of a bending load under the given stretching/compressing stress level, namely a composite load testing mode. The stress strain process of a material under the effect of a composite load can be detected by the collection of a load/displacement signal by using the detection control module.

Description

[0001] technical field [0002] The invention relates to the electromechanical field, in particular to a test platform for the micromechanical properties of materials under multiple loads of tension-bending-torsion. The present invention can be used as an independent tension / compression mode or an independent bending mode or an independent torsion mode material mechanical property testing device, that is, a single load test mode; it can also be used as a material mechanical property test of torsional load under a given tension / compression stress level Test or test the mechanical properties of materials under bending load at a given tensile / compressive stress level, that is, the composite load test mode. By controlling the detection module to collect the load / displacement signal, the stress-strain process of the material under the combined load can be detected. The application of the two composite loads provides a new method for the study of the mechanical properties of mater...

AI Technical Summary

Problems solved by technology

[0005] At present, the test platform for the micromechanical properties of materials under multiple loads of tension-bending-torsion is rare in China, and the research and observation methods are not yet mature. Mutual matching between various loads

2. The control and detection instruments in the test process, such as various types of sensors, encoders, drivers, etc., will be affected by the rest of the load, and the measurement accuracy is difficult to guarantee

4. The fixture for clamping the test piece needs to consider the effect of the combined tension and torsion load, and at the same time bear the bending load, so the design of the fixture is difficult

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