摘要
基于Lode参数给出了广义拉压及纯剪应力状态的概念,并表明在π平面或偏平面内Lode参数(Lode角)可描述简单加载条件下的应力路径。进一步基于能量途径给出了与M-C屈服准则相匹配的D-P系列屈服准则的参数转换关系。给出了D-P系列准则特征Lode角(特征应力路径)的概念,并分析了其多值性。最后对D-P系列准则进行了简单的误差分析。
Based on the Lode parameter of stress, the concept of general tensile stress state, compaction stress state and pure shear stress state are presented. It is shown that the stress path of simple load on the n plane or deviatoric plane can be characterized by Lode angle of stress. Furthermore, the transfer relation from parameters of M-C yield criterion to parameters of D-P yield criteria is given by energy approach. The concept of characteristic lode angle of stress is given, and its property of multi values is discussed. At lastly, the error between D-P and M-C yield criteria is analyzed.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2009年第16期82-86,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(10802060
50879065)
作者简介
作者简介：楚锡华（1977-），男，博士，讲师．E-mail：chuxh@whu．edu．cn
