材料多轴高低周疲劳失效准则的研究进展  

DEVELOPMENT OF FAILURE CRITERION ON HIGH-CYCLE AND LOW-CYCLE MULTIAXIAL FATIGUE

作　　者：时新红[1] 张建宇[1] 鲍蕊[1] 费斌军[1] 

机构地区：[1]北京航空航天大学固体力学研究所,北京100083

出　　处：《机械强度》2008年第3期515-521,共7页Journal of Mechanical Strength

摘　　要：多轴疲劳自研究以来,对于高周疲劳和低周疲劳分别出现了许多方法和准则。高周多轴疲劳的研究准则包括等效应力准则、临界面应力准则和应力不变量准则,其中研究比较多的是临界面应力准则。低周多轴疲劳的研究准则包括等效应变准则、临界面应变准则和能量准则,其中研究比较多的是临界面应变准则和能量准则。在这些准则中,真正普遍接受和有工程价值的并不多。文中就国内外多轴疲劳研究发展中比较有价值的准则进行概括和总结,简述各种准则的优缺点及其适用范围。Many criteria and approaches are developed since muhiaxial fatigue was studied on high-cycle fatigue and low-cycle fatigue. The high-cyele multiaxial fatigue criteria embrace equivalent stress criteria, critical stress criteria and stress invariant criteria, etc. among which the investigation concentrates mostly on the critical stress criteria. The low-cycle multiaxial fatigue criteria include equivalent strain criteria, critical strain criteria and energy approach, etc. and many researches ate focused on the critical strain er/teria and energy approach. However, only some parts of them are aceepted universally and applicable to engineering. Several valuable criterions are reviewed. The advantage and disadvantage of them are generalized, and their validities are stated.

关 键 词：多轴疲劳 高周疲劳 低周疲劳 应力准则 应变准则 临界面 能量法 

分 类 号：O346.2[理学—固体力学]