摘要
中国科学院金属研究所材料疲劳与断裂国家重点实验室，沈阳 １１００１５摘 要 纤维增强金属基复合材料的热机械疲劳（ｔｈｅｒｍｏｍｅｃｈａｎｉｃａｌ ｆａｔｉｇｕｅ简称ＴＭＦ）特性的研究在近年受到高度重视．本文根据国内外近期进行的理论研究以及获得的主要成果作一概要介绍．对于热机械循环特性，主要介绍基于细观力学方法的轴向性质模型，以及基于断裂与损伤理论的横向性质模型．对于热机械疲劳性能研究，结合横向性质导出两种热机械疲劳模型，然后分析基体的细观结构对疲劳寿命的影响．
More attention has been paid to the behavior of thermomechanical fatigue (TMF) of fiber-reinforced metal matrix composites. In this review, main results of the theoretical work conducted recently in this field are discussed. For the thermomechanical cycle behavior, the models of the axial nature based on micromechanical methods and the models of the transversal nature based on fracture and damage mechanics are included. For evaluating thermomechanical fatigue life, two models are deduced from the transerval nature of materials. The influence of the metal matrix's microstructure on the fatigue life is also discussed.
出处
《力学进展》
EI
CSCD
北大核心
2002年第1期81-91,共11页
Advances in Mechanics
基金
国家重点基础研究规划项目(G19990650)
国家自然科学基金(59871022)资助项目
关键词
黏塑性
热机械疲劳
细观力学方法
纤维增强金属基复合材料
轴向性质模型
横向性质模型
metal matrix composites, viscoplasticity, thermomechanical fatigue, micromechanical method The project supported by the Special Funds for the Major State Basic Research (G19990650), the National Natural Science Foundation of China (59871022).
