Material mechanical property in-situ test instrument and method under high-temperature complex mechanical load

Abstract

The invention, which belongs to the field of precise scientific instruments, relates to a material mechanical property in-situ test instrument and method under a high-temperature complex mechanical load. A support frame module of the instrument is used for realizing stable support and effective vibration isolation of each functional module of the instrument. A high-frequency fatigue loading moduleis used for realizing high-frequency fatigue loading of a tested sample. A static and dynamic mechanical load loading module is used for realizing combined loading of static and dynamic stretching / compressing / bending loads of the tested sample. A high / low-temperature loading module is used for realizing variable temperature environment loading on the tested sample from a low temperature to a hightemperature. An in-situ monitoring module can integrate a surface deformation damage measurement assembly, a three-dimensional strain measurement assembly, a microstructure measurement assembly and an internal damage detection assembly according to actual test requirements to realize parallel accurate in-situ measurement of a micromechanics behavior, a deformation damage mode and a performance evolution law of the tested sample. The material mechanical property in-situ test instrument and method have advantages of complex load environment, rich test content, high measurement precision and thelike.

Description

technical field

[0001] The invention relates to the field of precision scientific instruments, in particular to an in-situ testing instrument and method for mechanical properties of materials under high temperature and complex mechanical loads. Background technique

[0002] With the continuous development of science and technology, many key fields such as aerospace, automobile manufacturing and nuclear industry have significantly increased the requirements for the ability to guarantee the mechanical properties of materials under high temperature, heavy load, and high frequency loads. Advanced mechanical testing equipment and mechanical testing technology It has become the key to test material properties and carry out process optimization. Facing the material testing requirements in the above-mentioned many key areas, in-situ testing of the mechanical properties of materials under high temperature and complex mechanical loads is the guarantee for evaluating their mechanical p...

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