含椭球夹杂耐热梯度功能材料细观结构优化应力方程

HEAT-RESISTANT FUNCTIONALLY GRADIENT MATERIALS WITH SPHEROID INCLUSIONS MESO-SCOPIC-STRUCTURE OPTIMIZATION EQUATION

梯度功能材料具有复杂的细观结构组合方式,对其进行细观力学的研究是当前的主要发展方向。本文作者对非均质、耐热、含椭球夹杂梯度功能材料的细观结构与性能进行了分析,研究其细观力学建模和在机械/热载荷下的损伤演化和破坏。结果可应用于多相夹杂梯度功能材料的细观应力分析和细观性能预测,并均以显式给出,以便于工程应用。

Functionally gradient materials (FGMs) have complex meso-scopic structure, so it is the main developing direction to investigate the properties of FGMs by using the method of meso-scopic mechanics. An analysis on the meso-scopic structure and property of uneven hot-resistant FGMs with spheroid inclusions was introduced in this paper. A meso-scopic mechanical model was established. The research includes the damage evolution and the failure of FGMs. The research results were applied to the meso-scopic stress analysis and properties prediction of multi-phase inclusions FGMs. For the convenience of engineering applications, all the research results were provided in explicit forms.