Size effects and length scales in gradient plasticity and dislocation dynamics

被引：38
|
作者：
Zbib, HM [1 ]
Aifantis, EC
机构：
[1] Washington State Univ, Sch Mech & Mat Engn, Pullman, WA 99164 USA
[2] Aristotle Univ Thessaloniki, Mat Polytech Sch, GR-54006 Thessaloniki, Greece
[3] Michigan Technol Univ, Ctr Mech Mat & Instabil, Houghton, MI 49931 USA
[4] Aristotle Univ Thessaloniki, Lab Mech, GR-54006 Thessaloniki, Greece
来源：
SCRIPTA MATERIALIA | 2003年 / 48卷 / 02期
关键词：
plastic; constitutive equations; dislocations; mechanical properties;
D O I：
10.1016/S1359-6462(02)00342-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Deformation in metals is size dependent over length scales ranging from a few nanometers to 100 mum. Two frameworks, dislocation dynamics and gradient plasticity, each having a length scale with different interpretation are discussed. It is suggested that various dislocation arrangements produce different physical behavior with different gradients and length scales. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：155 / 160
页数：6
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