Simulation method of bicontinuous-phase composite material

Abstract

The invention relates to the technical field of simulation testing of material performance, and especially relates to a simulation method of a bicontinuous-phase composite material. The method comprises the following steps: step 1, adopting Cahn-Hilliard equation to simulate the structure of the bicontinuous-phase composite material, to obtain a simulation equation of the structure of the bicontinuous-phase composite material; step 2, performing discrete processing on the simulation equation by adopting a center difference method to obtain a difference equation; step 3, obtaining coordinate position information of all component phases of the bicontinuous-phase composite material according to the difference equation; And step 4, embedding the coordinate position information of all the components into finite element software to obtain a simulation model of the bicontinuous-phase composite material. According to the method, the calculation model capable of describing the mechanical behavior of the bicontinuous-phase composite material can be obtained, the model can describe the spatial distribution of the bicontinuous structure, the mechanical property of the bicontinuous-phase composite material can be predicted through finite element analysis based on the model, and the method is simple, high in efficiency and low in cost.

Description

technical field [0001] The invention belongs to the technical field of simulation testing of material properties, and in particular relates to a simulation method for dual continuous phase composite materials. Background technique [0002] Due to the complex microstructure of bicontinuous phase composites, it is a challenging task to study their mechanical properties by means of numerical simulation. As far as the existing calculation models are concerned, it is difficult for two-dimensional models to accurately describe the microstructure of bicontinuous phase composites. In fact, its components are interconnected in three-dimensional space, while in two-dimensional space, the two components Unable to maintain connectivity. Some 3D models have regular shapes, which are very different from the real material microstructure. However, the existing 3D stochastic models have certain limitations due to the simple random method, which makes it difficult to guarantee the connectivi...

AI Technical Summary

Problems solved by technology

As far as the existing calculation models are concerned, it is difficult for two-dimensional models to accurately describe the microstructure of bicontinuous phase composites. In fact, its components are interconnected in three-dimensional space, while in two-dimensional space, the two components unable to maintain connectivity

Some 3D models have regular shapes, which are very different from the real mate

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