平面应力特征线场法及其应用  

Plane Stress Characteristics Method and Its Application

作　　者：王桂兰[1] 贺毓辛[1] 

机构地区：[1]北京科技大学压力加工系

出　　处：《北京科技大学学报》1992年第2期151-156,共6页Journal of University of Science and Technology Beijing

摘　　要：在Hill屈服准则和与之相适应的流动法则的基础上,首次建立了考虑材料厚向异性的平面应力理论特征线方程,并将此基本方程应用于具有厚向异性的不规则件拉深成形的模拟。运用平面应力特征线场法计算、分析了盒形件拉深时法兰部的应力分布和沿模口的法向应力分布,并研究了该方法在合理毛料形状设计及其相应的合理加载条件设计中的应用。Based on Hill's yield condition and its related flow rule, the plane stress characteristics equations have been developed for the first time. By using these equations, the analysis and simulation for the deep drawing process of normal anisotropic and irregular parts have been realized. In the paper, the plane stress characteristic theory is adopted to calculate and analyse the stress distribution within the flange region and along the die opening during the deep drawing process of square boxes. Furthermore, with the application of the plane stress characteristic theory founded, the optimum design for the blank shapes and its loading conditions have also been researched in this paper.

关 键 词：平面应力 特征线 拉深 

分 类 号：TG301[金属学及工艺—金属压力加工]