Microscale Simulation on Mechanical Properties of Al/PTFE Composite Based on Real Microstructures

被引：49

作者：

Ge, Chao ^{[1
]}

Dong, Yongxiang ^{[1
]}

Maimaitituersun, Wubuliaisan ^{[1
]}

机构：

[1] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China

来源：

MATERIALS | 2016年 / 9卷 / 07期

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

polymer composites; Al/PTFE; finite-element simulation; microscale modelling; quasi-static compression; MICROMECHANICAL ANALYSES; REPRESENTATIVE VOLUME; UNIT CELLS; DEFORMATION; BEHAVIOR; STRAIN; DAMAGE; MODEL; PREDICTION;

D O I：

10.3390/ma9070590

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel numerical method at the microscale for studying the mechanical behavior of an aluminum-particle-reinforced polytetrafluoroethylene (Al/PTFE) composite is proposed and validated experimentally in this paper. Two types of 2D representative volume elements (RVEs), real microstructure-based and simulated microstructures, are established by following a series of image processing procedures and on a statistical basis considering the geometry and the distribution of particles and microvoids, respectively. Moreover, 3D finite element modelling based on the same statistical information as the 2D simulated microstructure models is conducted to show the efficiency and effectiveness of the 2D models. The results of all simulations and experiments indicate that real microstructure-based models and simulated microstructure models are efficient methods to predict elastic and plastic constants of particle-reinforced composites.

引用

页数：16

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