尤其是提出了能考虑剪胀与剪缩的体积屈服面和应力 Lode 角θσ方向的剪切屈服面。指出在广义塑性力学中不必采用硬化定律
就能得出塑性应变增量与应力增量的关系
给出了求弹塑性矩阵的方法。
Abstract
The relation between the yield surface and the plastic potential surface based o n the generalized plastic mechanics is discussed systematically
and the basic characters of the yield surface
especially of volumetric yield surface that can calculate dilatant volume strain and shear yield surface in stress Lode angel direction for the first time
are also discussed . T he stress-strain relation is obtained without hardening law
and the elastoplatic stiffness matrix is deduced with two methods .