考虑纤维端头脱粘的金属基复合材料轴向弹塑性拉伸性能的研究<sup>*</sup>

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考虑纤维端头脱粘的金属基复合材料轴向弹塑性拉伸性能的研究^*

基金项目: *国家自然科学基金

Research Inslitute of Engineering Mechianics, Dalian University of Technology, Dalian 116023, P. R. Chilla

摘要: 本文建立在广义自洽有限元迭代平均化方法的基础上,分析了纤维端头脱粘对SiC晶须增强铝基复合材料的轴向弹塑性拉伸性能的影响.分别计算了不同纤维长径比与体分比下有纤维端头脱粘情况的金属基复合材料的轴向拉伸性能.并与界面完好的情况相对比,得出了纤维端头脱粘的影响随纤维长径比增大而减小,和随纤维体分比增大而增大的结论.
- 脱粘 /
- 金属基复合材料 /
- 弹塑性 /
- 广义自洽方法 /
- 有限元方法
Abstract: Bused on the generalized self-consistent finite element iterative averaging method.this paper studied the effects of the fiber-end debonding on the axially tensile elasto-plastic properties of SiC whiskers reinforced Aluminium matrix composite for variouscases of different.fiber's fiber's aspect ratios and volume fractions Compared with the casesof perfect interface,it could be concluded that the effects of fiber-end debonding willbecome weaker with the fiber aspect ratio increasing and greater as the fiber volumefraction increases.
- debonding /
- metal matrix composites /
- elastoplasticity /
- Generalized /

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