首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Dynamics of texture evolution in face-centered cubic polycrystals
Authors:Ashish Kumar
Institution:Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA
Abstract:Texturing of polycrystals under slip-dominated plastic deformation is driven by reorientation velocity fields that arise from the lattice spin that accompanies restricted slip. Here, the dynamics of reorientation velocity fields are analyzed to isolate mechanisms by which textures develop and dissipate. Two tools are introduced to enable this analysis: linear stability analysis to assess behavior of equilibrium orientations, and a parametrization of lattice spins to enable analysis of fields without equilibria. This toolkit is applied to face-centered cubic (FCC) polycrystals and sheds new insight into texture development under three representative deformation modes: plane strain compression, pure shear and simple shear.
Keywords:Dynamics  Crystal Plasticity  Polycrystalline material  Stability and bifurcation  Texture evolution
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号