Generation of long range elastic stress field in polycrystals under uniaxial load

Abstract

Elastic stress distribution in two dimensional polycrystal models which include about six hundred grains are analysed by finite element method. The results show that elastic stress filed form long range structure whose size sometimes measures up to ten to twenty crystal grains. We discuss the reason for the generation of such long range structure from the view point of young's modulus of each crystal grain and stress concentration in the models.