颗粒增强复合材料相界面的动态应力分析

基金项目: 国家自然科学基金资助重点项目和面上项目(19632030;19872008);扬州大学自然科学基金

Dynamic Stress Analysis of the Interface in a Particle-Reinforced Composite

1.
State Key LNM, Institute of Mechanics, Chinese Acadenuy of Sciences, Beijing 100080, P R China;
2.
Yangzhou University, Yangzhou 225009, P R China;
3.
Department of Mechanics and Engineering Science, Peking University, Beijing 100871, P R China

摘要: 针对硬微粒填充高聚物复合材料因相界面脱粘开裂生成微孔洞的微损伤成核机制,取材料的代表体积单元进行动力分析,通过对粘弹性基体本构关系作Laplace变换建立了基本方程,并引入Hankel变换,得到了球对称动荷载作用下相界面应力变化规律的解析解,据此分析了惯性效应和粘性效应对界面脱粘的影响。
- 流变材料 /
- 动态应力 /
- 界面脱粘 /
- 微孔洞成核
Abstract: The analysis of the dynamic stress on the particle-matrix interface in particle-reinforced composite for the reason that this stress may lead to the microvoids.nucleation due to the interfacial debonding were studied.For simplification,the representative volume element(RVE)was taken as an analysis model.The Laplace transformation was used to derive the basic equations,and the analytical solutions were obtained by means of Hankel transformation.Moreover,the influences of the inertia and viscosity on the debonding damage were also discussed.
- rheological material /
- dynamic stress /
- interface debonding /
- microvoids’nucleation

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