A hierarchical dislocation-grain boundary interaction model based on 3D discrete dislocation dynami

• 作 者: GAO Yuan ZHUANG Zhuo YOU XiaoC
• 机 构: AppliedMechanicsLab
• 出 处: 中国科学：物理学、力学、天文学英文版
• 发表日期: 2011年4期
• 关键词: 相互作用模型 分子动力学 位错动力学 颗粒边界 离散 三维 错位 模拟仿真 Grain boundary Multiscale simulation Dis
• 基金项目: This work was supported by the National Natural Science Foundation of China （Grant No. 10772096） and the National Basic Research Program of China （Grand No. 2010CB631005）.

We develop a new hierarchical dislocation-grain boundary (GB) interaction model to predict the mechanical behavior of polycrystalline metals at micro and submicro scales by coupling 3D Discrete Dislocation Dynamics (DDD) simulation with the Molecular Dyna