基体特性对D-Al<sub>2</sub>O<sub>3</sub>/Al 合金复合材料力学行为的影响

基体特性对D-Al₂O₃/Al 合金复合材料力学行为的影响

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

1.
Department of Applied Mechanics and Engineering, Southwest Jiaotong University,Chengdu 610031, P.R.China;
2.
Department of Material Engineering, Southwest Jiaotong University, Chengdu 610031, P. R. China

摘要

摘要: 基体行为是短纤维增强金属基复合材料中一个重要的因素。本文将通过实验分析方法和在一定的理论分析模型上, 借助于弹塑性有限元分析方法, 对基体特性的变化对D-Al₂O₃/Al 合金复合材料力学行为的影响作较为详细的研究, 其中包括基体性能对应力传递、抗拉强度以及断裂机理的影响。研究表明, 基体性能的变化显著影响基体与纤维间的应力传递, 从而对复合材料的抗拉强度和断裂机理产生较大的影响。
- 短纤维复合材料 /
- 力学行为 /
- 基体特性 /
- 有限元
Abstract: The behavior of matrix is an important factor in short fiber reinforced metal matrix composite. Through the experimental analysis and the axi symmetrical finite element method based on a certain theoretical model, the effects of matrix performance on the mechanical behavior of short fiber reinforced metal matrix composite were studied in detail. The effects of matrix characteristics on such aspects as stress transfer, tensile strength and fracture mechanism were discussed. As a result, the change of matrix performance influences stress transfer, and thus changes the tensile strength and fracture mechanism of the composite greatly.
- short fiber composite /
- mechanical behavior /
- matrix /
- finite element method