Numerical simulation of thermo-mechanical fatigue properties for particulate reinforced composites
Numerical simulation of thermo-mechanical fatigue properties for particulate reinforced composites
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DOI：
10.1007/s10409-005-0024-z
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发表时间：
2005-04
影响因子：
3.5
通讯作者：
R. Guo;Hui-ji Shi;Z. Yao
中科院分区：
文献类型：
--
作者：
R. Guo;Hui-ji Shi;Z. Yao
本文采用包含蠕变、热应变和塑性应变的二维Voronoi单元，对颗粒增强复合材料的热-机械疲劳行为进行了数值模拟。机械疲劳相与热疲劳相的关系影响着材料的热-机械疲劳行为和循环蠕变损伤。颗粒增强复合材料的微观结构拓扑特征，如夹杂物的取向、深宽比、分布和体积分数等，对复合材料的热力学行为有很大的影响。通过数值模拟算例，得出了一些相关结论。
In this paper, a two dimensional Voronoi cell element, formulated with creep, thermal and plastic strain, is applied for the numerical simulation of thermo-mechanical fatigue behavior for particulate reinforced composites. The relation between mechanical fatigue phases and thermal fatigue phases influences the thermo-mechanical fatigue behavior and cyclic creep damage. The topological features of micro-structure in particulate reinforced composites, such as the orientation, depth-width ratio, distribution and volume fraction of inclusions, have a great influence on thermo-mechanical behavior. Some related conclusions are obtained by examples of numerical simulation.