摘要
将晶界及其影响区综合考虑，建立了考虑晶界效应的力学模型，结合晶体塑性理论，利用有限变形有限元法对多晶体进行数值模拟．数值结果显示了细观层次下晶粒变形场的特点，理论计算同实验定性一致．
By synthetically considering grain boundary and its influence zone, the microme chanical model of polycrystal is established for considering the influence of grain boundary. By using crystal plastic theory and finite deformation finite element method, numerical simulation is carried out for the model. Numerical results display the mecroscopic characteristic of deformation fields of grains. Calculated results are in qualitatively agree with experimental results.
出处
《固体力学学报》
CAS
CSCD
北大核心
1996年第3期189-199,共11页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金
关键词
晶界
滑移
滑错
晶体塑性
有限变形
grain boundary
slip
slid
crystal plasticity
finite deformation
