矿用圆环链间接触应力场的三维弹塑性有限元分析  

Three-dimensional Elastic-plastic Finite Element Analysis of Stress Fields due to Contact Between Round Link Chains for Mine Use

作　　者：朱华双[1] 刘金依[2] 

机构地区：[1]西安科技大学机械工程学院,西安710054 [2]西安交通大学机械工程学院,西安710049

出　　处：《煤矿机械》2005年第12期55-56,共2页Coal Mine Machinery

摘　　要：采用有限元软件ANSYS7.1分析矿用重载圆环链三维弹塑性接触,得到von Mises等效应力场和塑性应变场,计算结果和弹性分析结果进行了比较,基于断裂力学理论讨论了圆环链间弹塑性接触对其裂纹萌生和扩展的影响。A three - dimensional elastic - plastic finite element analysis of contact between round link chains for mine Use is presented. Results for the yon Mises equivalent stress fields in the chains and the strain- plastic fields are given for a perfectly elastic- plastic hypothesis. The fields for elastic - plastic are compared with ones for linear elastic analysis. The significance of the chains elastic - plastic contact for subsurface crack initiation and expansion in the stress concentration zone is discussed based on the theory of fracture mechanics.

关 键 词：圆环链 有限元法 接触 弹塑性 

分 类 号：TD528[矿业工程—矿山机电]