Composite material multi-scale concurrent simulation method and system

Abstract

The invention provides a multi-scale concurrent simulation method for a composite material. The multi-scale concurrent simulation method comprises the following steps that: S1, a constitutive structure of each composition phase material of the composite material is constructed through a data-driven algorithm; S2, self-adaptive clustering analysis is carried out on the constitutive model, multi-scale concurrent calculation of the composite material is achieved through the self-adaptive clustering analysis, the self-adaptive clustering analysis comprises an online stage and an offline stage, clustering is carried out on RVE based on strain concentration tensors in the offline stage, interaction tensor components between the clusters are solved; the rigidity of a reference material is adjusted through self-adaptive iteration in an online stage, and cluster stress-strain distribution is obtained by combining constitutive models of all composition phase materials. The invention further provides a composite material multi-scale concurrent simulation system. When the composite material is subjected to multi-scale analysis, no empirical material model needs to be introduced, the tedious parameter calibration process is omitted, and application is more convenient.

Description

technical field [0001] The present invention relates to the technical field of composite material design, in particular to a multi-scale concurrent simulation method and system for composite materials, especially to a multi-scale concurrent simulation method for composite materials based on adaptive cluster analysis and data-driven algorithms Background technique [0002] With the rapid development of computing science and the continuous improvement of computer performance, more and more numerical simulation technologies such as finite element method have been applied to various engineering technology fields to guide industrial production, shorten the design cycle, and reduce research and development costs. At present, there are many kinds of popular CAE analysis software, and the modeling technology and solution algorithm are becoming more and more mature. It provides a wealth of integrated modules and solutions for problems such as structural analysis, high-speed impact, fl...

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Problems solved by technology

[0008] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a multi-scale concurrent simulation method and system for composite materials, using data-driven algorithms to construct the material constitutive of each component phase in adaptive cluster analysis, and replace the model with data , in order to realize the multi-scale concu

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