Texture evolution and rotational hardening in multiple slip plasticity: a two dimensional study

摘要

We study the evolution of texture in polycrystals within the usualassumptions of multiple slip plasticity, considering the rotation ofcrystallographic direction to be kinematically independent from thematerial plastic flow. A minute kinematic description of crystallinematter is given through the family of slip rates and the lattice spinand is supposed to fit with the gross description given through thegradient of the velocity field. Then, as in the well known Taylorapproach, the microscopic variables are sought through a constitutiveminimum condition, We start introducing our frame of work in general,then we provide a two-dimensional example. The evolution of textureand of the load surface are given under uniform gradients of thegross velocity field.