短纤维增强金属基复合材料基体中的应力分布及其变形特征

基金项目: 四川省应用基础基金项目资助(川教科(1998) 19 号)

详细信息

STRESS DISTRIBUTION AND DEFORMATION CHARACTERISTICS OF MATRIX IN SHORT FIBER REINFORCED METAL MATRIX COMPOSITES

Department of Applied Mechanics and Engineering,Southwest Jiaotong University,Chengdu 610031, P.R.China

摘要

摘要: 基体行为是影响随机分布短纤维增强金属基复合材料力学性能的一个重要因素。本文作者将在短纤维复合材料单纤维三维模型的基础上, 借助于弹塑性有限元分析方法, 研究在加载过程中, 不同纤维位向和界面结合状态下基体中的应力分布情况及基体的变形特征。研究表明, 该类复合材料中基体的应力分布情况和变形特征将受到纤维位向改变和界面结合强弱的显著影响。
- 短纤维复合材料 /
- 基体 /
- 有限元分析 /
- 应力分布 /
- 变形特征
Abstract: The behavior of matrix is an important factor for the performances of short fiber reinforced metal matrix composites. Through the elastic plastic finite element method, which is based on a 3 D single fiber model, the stress distributions and deformation characteristics of matrix in short fiber reinforced metal matrix composite were studied in different fiber orientations and interfacial bond. It is shown that the changes in fiber orientation and interfacial bond have great effect on the stress distributions and deformation characteristics of matrix.
- short fiber composite /
- matrix /
- finite element method /
- stress distribution /
- deformation characteristics