Material anisotropic elastic constant detection method, system, device and storage medium

Abstract

The invention discloses a method, system, device and storage medium for detecting the anisotropic elastic constant of a material. The method includes: obtaining the deformation displacement and strain information of the material through the full-field strain measurement technology, and establishing multiple groups based on the characteristic function virtual field method. different virtual fields and analyze the deformation displacement and strain information based on the virtual fields, so as to finally detect the anisotropic elastic constant of the material. The system includes a measurement module, an acquisition module, a detection module, a processing module and a display module. The apparatus includes a memory for storing a program and a processor for loading the program to perform the method. By using the method of the invention, a plurality of mechanical parameters of the material can be obtained at one time, greatly reducing the investment in the cost of the material mechanical test, and improving the efficiency of staff in material analysis work. The invention can be widely used in the technical field of material detection.

Description

technical field [0001] The invention relates to the technical field of material detection, in particular to a method, system, device and storage medium for detecting anisotropic elastic constants of materials. Background technique [0002] In the 21st century, with the development and development of information science and technology, there has been a lot of progress in the technical means of testing the parameters of the material constitutive model. In particular, the wide application of full-field measurement technology has made a breakthrough in the accuracy of the analysis and detection of material elastic constants. [0003] Accurate material mechanical performance parameters are the basis of various mechanical analysis and structural design. For example, the performance test of aircraft composite materials is a very important research topic. For a long time, due to the limitations of test equipment and test methods, researchers have often been unable to fully evaluat...

AI Technical Summary

Problems solved by technology

For a long time, due to the limitations of test equipment and test methods, researchers have often been unable to fully evaluate the elastic-plastic properties of materials, microscopic deformation and damage mechanisms, and other parameters, resulting in the inability to predict the failure behavior of materials in actual service, which often affects human life and huge damage to property

In particular, to solve the problem of elastic-plastic parameter detection of materials, most of the existing technologies have the defect that the analysis process is relatively cumbersome, and it is difficult to obtain multiple elastic-mechanical parameters of the material through a single test, often requiring repeated tests, and the analysis efficiency is extremely high. Low, the overall cost of the test is also high; and the external conditions of each test are difficult to be completely consistent, so the analysis results are prone to large fluctuations, and the accuracy is low. These problems need to be solved urgently

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