Particle-reinforced composite-material finite-element modeling method of considering microstructure interface

Abstract

The invention discloses a particle-reinforced composite-material finite-element modeling method of considering a microstructure interface, relates to a composite-material finite-element modeling method, and belongs to the field of particle-reinforced composite materials. According to the method, a deviation method is used to establish a geometric model of the reinforced-phase particle interface onthe basis of definition of traditional particle-reinforced composite-material finite-element models on geometric modeling, materials and contact of a matrix and reinforced-phase particles, consideration of influences of the microstructure interface on a particle-reinforced composite-material finite-element model is realized through carrying out assignment of material and contact attributes to thereinforced-phase particle interface, accuracy and reliability of particle-reinforced composite-material finite-element model simulation are improved, and then engineering problems of the particle-reinforced composite-material field are solved. In addition, the method has the advantage of simplifying complexity of digital image processing and finite-element software modeling. The method is suitable for, but not limited to, finite-element modeling of particle-reinforced composite materials.

Description

technical field [0001] The invention relates to a finite element modeling method for composite materials, in particular to a finite element modeling method for particle-reinforced composite materials considering microstructure interfaces, and belongs to the field of particle-reinforced composite materials. Background technique [0002] Particle-reinforced metal matrix composites have the characteristics of high strength, high elastic modulus, wear resistance, and good electrical and thermal conductivity. They are widely used in aerospace, electronics, automobiles, and construction industries. In exploring the performance of materials, we often use the method of finite element modeling. The microstructure of metal matrix composites, such as particle morphology, size, distribution, content and interface properties, has a very important impact on the overall performance of composite materials. , therefore, how to establish a finite element model that is close to reality is extr...

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Problems solved by technology

[0006] In order to establish a finite element model of particle-reinforced composite materials more accurately, the existing modeling problems such as low efficiency, complicated operation, and inability to accurately reflect the real microstructure of the material should be changed.

The technical problem to be solved by the finite element modeling method of particle-reinforced composite material considering microstructure interface disclosed by the present invention is to provide a finite element modeling method combining various digital image processing software and finite element simulation software, considering The influence of the microstructure interface on the finite element model of particle-reinforced composite materials improves the simulation accuracy and reliability of the finite element model of particle-reinforced composite materials, and then solves engineering problems in the field of particle-reinforced composite materials. It has simplified digital image processing and finite element software modeling The advantage of complexity

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