基于晶体塑性理论的大变形数值模拟技术  

Numerical simulation technology based on crystal plasticity theory

作　　者：刘海军[1] 方刚[1] 曾攀[1] 

机构地区：[1]清华大学机械工程系,100084

出　　处：《塑性工程学报》2006年第2期1-8,28,共9页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(50205013)。

摘　　要：介绍和评述了晶体塑性力学的数值模拟技术,包括单晶体塑性本构、多晶均匀化模型以及晶体塑性本构模型的数值实现,并预测晶体塑性理论的一些新的发展动向。Crystallographic texture developed during the finite plastic deformation of polycrystalline aggregate has significant influence on its mechanical and physical properties as it causes plastic anisotropy. During the last two decades, many scientists of mechanics and materials endeavor to effectively predict the plastic behavior of polyerystalline materials using the crystal plasticity theory. The Fundamentals and recent advances of the crystal plasticity theory are summarized in this paper, including the constitutive model for single crystals, averaging schemes between the polycrystal and the single grains within the aggregate, the numerical implementation of the constitutive models and also some predictions on the future development of the crystal plasticity theory.

关 键 词：晶体塑性 织构 各向异性 

分 类 号：TB125[理学—工程力学] TB115[理学—力学]