摘要
在推广Ｌｕｃｃｈｅｓｉ和Ｐｏｄｉｏ＿Ｇｕｉｄｕｇｌｉ（１９８８）的带弹性范围物质理论的基础上，表明了背应力作为Ｃａｕｃｈｙ应力空间中屈服面“中心”的定义存在问题·背应力是Ｌａｇｒａｎｇｅ型变量。
In this paper, the theory of materials with elastic range by Lucchesi and Podio_Guidugli(1988) has been generalized. It has also shown that there are some difficulties on the definition of back stress as the “center” of the yield surface in the Cauchy space. The back stress tensor is Lagrangian,and must be defined in the Lagrangian stress space.
出处
《应用数学和力学》
EI
CSCD
北大核心
1999年第5期452-460,共9页
Applied Mathematics and Mechanics
关键词
背应力
屈服
随动强化
弹塑性物质理论
theory of materials with elastic range
elastic_plastic constitutive relation
back stress
