Instruments and methods for in-situ testing of mechanical properties of materials under high temperature and complex mechanical loads

Abstract

The invention relates to an in-situ testing instrument and method for mechanical properties of materials under high-temperature complex mechanical loads, belonging to the field of precision scientific instruments. The supporting frame module of the instrument is used to realize stable support and effective vibration isolation for each functional module of the instrument; the high-frequency fatigue loading module is used to realize high-frequency fatigue loading on the tested sample; the static and dynamic mechanical load The combined loading of static and dynamic tensile / compressive / bending loads of the tested sample; the high / low temperature loading module is used to realize the variable temperature environment loading of the tested sample from low temperature to high temperature; the in-situ monitoring module can integrate surface deformation according to actual test needs Damage measurement components, three-dimensional strain measurement components, microstructure measurement components and internal damage detection components, thereby realizing parallel and accurate in-situ measurement of the micromechanical behavior, deformation damage mode and performance evolution law of the tested sample. It has the advantages of complex load environment, rich test content and high measurement accuracy.

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...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an in-situ test instrument and method for the mechanical properties of materials under high temperature and complex mechanical loads, so as to make up for the shortcomings of existing test instruments and test methods

Combined with the in-situ test instrument for the mechanical properties of materials under high temperature and complex mechanical loads, an in-situ test method for the mechanical properties of materials under high temperature and complex mechanical loads is provided. It provides an innovative technical means to solve the scientific problems of the mechanical behavior of materials, deformation and damage mechanisms and their correlation with complex loads and material properties.

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