A parameterized modeling method of laminated composite plate imitating mother-of-pearl

Abstract

The invention relates to a parametric modeling method of a laminated composite plate imitating mother-of-pearl, which comprises the following steps: setting geometrical structure parameters of the mother-of-pearl layered composite plate; according to the geometrical structure parameters, establishing a three-dimensional geometrical model of laminated composite plate imitating mother-of-pearl; obtaining a finite element mesh model of the laminated composite plate imitating mother-of-pearl through the mesh parameters by conducting finite element mesh generation on the plate. The script file is compiled by Python language, an internal function of ABAQUS is called to complete modeling operation, the script file runs in ABAQUS software, and thus automatic and parameterized modeling of laminatedcomposite plate imitating mother-of-pearl are realized. The invention only needs to modify the geometrical structure parameters and mesh partition parameters of the pearl mother-of-pearl layered composite plate in the script file according to the actual requirements, and through running of the script file again, the geometric model and finite element mesh model of laminated composite plates withdifferent geometrical parameters and element densities can be generated automatically. The modeling process is highly automated and efficient, which can greatly reduce the modeling work in the simulation analysis and optimization design of mechanical properties of laminated composite plates imitating mother-of-pearl.

Description

technical field [0001] The invention belongs to the technical field of mechanical performance simulation analysis of biomimetic composite materials, relates to a modeling method of composite materials, in particular to a parametric geometry and finite element modeling method of a mother-of-pearl layered composite board. Background technique [0002] The mother-of-pearl in the shell is a biological material with good strength and toughness. Although it is composed of 95% brittle aragonite and only 5% soft organic matter, it benefits from the internal "brick-mud "Type layered multi-level structure, its fracture toughness is thousands of times higher than that of pure aragonite. Imitating the multi-level structure of mother-of-pearl, replacing aragonite with ceramics and other high-strength and high-hardness materials as reinforcements, and using softer materials such as polymers instead of biological organic matter as the matrix, the development of imitation mother-of-pearl co...

AI Technical Summary

Problems solved by technology

This modeling process is a very time consuming part of the overall simulation process

This is especially true for the imitation mother-of-pearl composite material, which has a complex "brick-mud" layered multi-level structure inside, and its modeling process is extremely cumbersome and time-consuming; in addition, in the optimization design of the mechanical properties of the imitation mother-of-pearl composite material , it is necessary to establish many models of composite materials with the same internal structure type but different structural parameters to predict the mechanical properties. The modeling workload is even greater, and more effective modeling methods are needed.

[0004] At present, the non-parametric modeling method is the main method for modeling the structure of imitation mother-of-pearl composite materials. It needs to manually establish each feature in the model one by one. This method requires a large amount of manual work, and the modeling process is time-consuming and costly. high

Especially in the optimization design process involving the establishment of many models with similar structures, this method brings a lot of repetitive work, resulting in low efficiency and long design cycle

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