Parametric study of stress state development during twinning using 3D finite element modeling

被引：19

作者：

Zhang, Richard Y. ^{[1
]}

Daymond, Mark R. ^{[1
]}

Holt, Richard A. ^{[1
]}

机构：

[1] Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 06期

关键词：

Internal stresses; Twinning; Micromechanical modeling; Finite element analysis; UNIAXIAL DEFORMATION; TEXTURED ZIRCALOY-2; COMPOSITES; ZIRCONIUM;

D O I：

10.1016/j.msea.2010.12.062

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A deformation twinning model which simulates the characteristic twin shear and corresponding grain reorientation has been developed using a 3D finite element method. This model has been used to study how twinning affects the stress state in both the parent grain and twin, and the stress states that are energetically favorable for twinning. The component of shear stress on the twin plane and direction is primarily responsible not only for whether twinning can occur, but also the energetically favorable twin volume fraction. A map predicting twin volume fraction as a function of parent grain deviatoric stress has been developed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2725 / 2735

页数：11

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