A dislocation-based model for low-amplitude fatigue behaviour of face-centred cubic single crystals

被引：26

作者：

Depres, C. ^{[1
]}

Fivel, M. ^{[2
]}

Tabourot, L. ^{[1
]}

机构：

[1] Univ Savoie, Lab Syst & Mat MEcartron, F-74944 Annecy Le Vieux, France

[2] Inst Natl Polytech Grenoble, Lab Sci & Ingn Mat & Procedes, CNRS, F-38402 St Martin Dheres, France

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 12期

关键词：

high-cycle fatigue; micromechanical modeling; dislocation dynamics;

D O I：

10.1016/j.scriptamat.2008.02.027

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A dislocation-based model intended to predict mechanical behaviour for low-amplitude fatigue loading is presented. It is based on a physical representation of the dislocation microstructure according to a statistical distribution of dislocation dipoles acting as efficient obstacles to plastic slip. This leads to a reduced set of equations that accurately predict the development of hysteresis loops during cycling. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1086 / 1089

页数：4