A Finite Element Modeling Method for Particle Reinforced Composite Materials Based on Pixel Theory
A composite material and particle enhancement technology, applied in image enhancement, 3D modeling, image data processing, etc., can solve the problems of not accurately reflecting the real microstructure of materials, complex operations, low efficiency, etc., to solve engineering problems in the field, Effects of Improving Simulation Accuracy and Reliability
Active Publication Date: 2021-02-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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[0006] In order to establish the finite element model of particle reinforced composite materials more accurately, and to change the existing statistics-based modeling methods such as low efficiency, complicated operation, and inability to accurately reflect the real microstructure of the material, a method disclosed in the present invention The technical problem to be solved by a finite element modeling method for particle reinforced composite materials based on pixel theory is to provide a finite element modeling method that combines a variety of digital image processing software and finite element simulation software, and considers the impact of microstructure on particle reinforced composite materials. The impact of the material finite element model can accurately represent the outline of the particle item, simplify the complicated operation of digital image processing and finite element software modeling, and improve the accuracy and reliability of the finite element simulation
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Embodiment 1
[0077] A finite element modeling method for particle reinforced composite materials based on the pixel theory disclosed in this embodiment, the specific implementation steps are as follows:
[0078] Step 1. Use SEM, OM and other methods to observe and extract the specific microstructure image of the particle-reinforced composite material, and save it in JPEG format for subsequent digital image processing.
[0079] According to the specific material used, it is processed by wire cutting, grinding, polishing, ultrasonic vibration cleaning and other processes to obtain a smooth and clean material section to ensure that the oxidation and corrosion areas on the surface of the material are removed cleanly. Using SEM scanning electron microscope and OM optical microscope Observe the specific microstructure of the material, select the typical area with the least stains and scratches, and the clearest microstructure of the material, and save the specific microstructure photos of the par...
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The invention discloses a pixel theory-based particle reinforced composite material finite element modeling method, in particular, a pixel theory-based particle reinforced composite material finite element modeling method considering microstructures and belongs to the particle reinforced composite material finite element modeling technical field. According to the method of the invention, on the basis of the definitions of the materials of a conventional particle reinforced composite material finite element model, a reinforced phase particle geometric model is established based on a pixel theory; and therefore, the contours of reinforced phases can be accurately reflected, efficiency and the accuracy of simulation results can be balanced, the simulation accuracy and reliability of the finite element model of a particle-reinforced composite material can be improved, and thus, engineering problems in the particle reinforced composite material field can be solved. In addition, the method of the present invention has general universality and is applicable to, but not limited to, the finite element modeling of particle-reinforced composite materials; the method can improve the accuracy of the model and greatly simplify finite element modeling operation; and the method can simplify digital image processing and the complexity of finite element software modeling.
Description
technical field [0001] The present invention relates to a finite element modeling method of particle reinforced composite material considering microstructure, in particular to a finite element modeling method of particle reinforced composite material based on pixel theory considering microstructure, belonging to the finite element modeling method of particle reinforced composite material field of mold technology. Background technique [0002] Particle-reinforced metal matrix composites have the comprehensive properties of both metal and non-metal, and have the characteristics of high strength, high elastic modulus, wear resistance and good electrical and thermal conductivity, and their specific strength, specific modulus and heat resistance exceed those of the matrix. Metals are therefore widely used in industries such as aerospace, electronics, automobiles, and construction, and are currently a research hotspot in the field of engineering materials. When exploring the perf...
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IPC IPC(8): G06T17/20G06T5/30G06F30/23G06F113/26
CPCG06T5/30G06T17/20G06F30/23
Inventor 解丽静项俊锋胡鑫高飞农程冠华衣杰李晨露刘铮庞思勤王西彬
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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