硬化模型对多晶变形织构预测的影响  

Effect of Hardening Models on the Prediction of Deformation Textures for Polycrystalline

作　　者：张光[1] 张克实[1] 冯露[2] 

机构地区：[1]西北工业大学工程力学系,西安710072 [2]上海交通大学,上海200240

出　　处：《机械科学与技术》2004年第8期988-990,994,共4页Mechanical Science and Technology for Aerospace Engineering

基　　金：航空科学基金 ( 0 1C5 3 0 15 );西北工业大学博士论文创新基金资助

摘　　要：基于变形梯度乘法分解 ,推导了延性单晶材料的弹性变形梯度演化方程 ,利用晶体弹粘塑性本构关系的和Taylor多晶假设 ,以面心立方晶体铝。Based on a multiplicative decomposition of the deformation gradient, an evolution equation of the crystal elastic deformation gradient for ductile single crystals is obtained. The constitutive equation for an elasto-viscoplastic crystal is presented for modeling the texture evolution and stress-strain response of polycrystalline materials using Taylor hypothesis. The effect of hardening model on the evolution of polycrystalline materials Al and Cu is analyzed.

关 键 词：晶体塑性 织构 多晶体材料 

分 类 号：O344[理学—固体力学] TG113.25[理学—力学]