摘要
在现有Ｔｒｅｓｃａ屈服准则、Ｍｉｓｅｓ屈服准则和双剪应力屈服准则的基础上，提出了一个新的屈服准则．并建立了一个统一表达式．分析结果表明，所建立的屈服准则，包含了Ｔｒｅｓｃａ准则和Ｍｉｓｅｓ准则，以及介于二者之间的一族屈服准则．这些准则不仅满足Ｄｒｕｃｋｅｒ公设的屈服面外凸性条件．而且与材料性质有关，即不同的材料对应不同的屈服准则，Ｔｒｅｓｃａ准则和Ｍｉｓｅｓ准则可作为本文的特殊形式．
Based on the three presently yield criteria,i.e.Tresca yield criterion,Mises yield criterionand twin shear stress yield criterion,a new yield criterion is proposed in this paper,and a uni-tied form is presented. The results of analysis show that the yield criteria presented in this papercontain the Tresca ccriterion, Mises criterion and a number of yield criteria between Trescaand Mises criterion.The criteria satisfy the convexity condition of yield surface of Druckerspostulate,also it is related to material properties,i.e.for different material there is differentyield criterion,the Tresca yield criterion and Mises yield criterion can be as the particularforms of the unitied form presented in this paper.
出处
《沈阳工业大学学报》
CAS
1994年第2期77-81,共5页
Journal of Shenyang University of Technology
关键词
剪应力
屈服
屈服准则
shear stress
yield /criteria /unified form
