热变形的固有应变预测法及实例  

A method to predict residual distortion based on inherent strain and its application to heating processes

作　　者：罗宇[1] 邓德安[2] 江晓玲[1] 朱枳锋[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200030 [2]重庆大学机械工程学院,重庆400044

出　　处：《焊接学报》2006年第5期17-20,共4页Transactions of The China Welding Institution

基　　金：国家自然科学基金资助项目(50175073);上海市科委重点科技攻关项目

摘　　要：阐述了以固有应变为基础的弹性板单元有限元残余变形预测法。通过金属结构的焊接变形的预测和船板的线状加热弯曲成形变形计算的实例,验证了固有应变为基础的弹性板单元有限元残余变形预测法在热加工过程中应用的可行性。A method to predict residual deformation based on inherent strain was introduced.The proposed method was applied to predict welding deformation for the tank with lower temperature and plate bending deformation by line heating.Feasibility of the proposed method was also verified.

关 键 词：固有应变 焊接变形 弯曲成形 有限元计算 

分 类 号：TG404[金属学及工艺—焊接]