The modelling of dislocation dynamics: elastic behaviour versus core properties

被引:22
作者
Devincre, B
Kubin, LP
机构
[1] Lab. d'Etude des Microstructures, CNRS-ONERA (OM), 92322 Châtillon Cedex
来源
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1997年 / 355卷 / 1731期
关键词
D O I
10.1098/rsta.1997.0102
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The plasticity of crystalline solids results from the motion of linear defects called dislocations. As a coherent theoretical description of plasticity is for the moment out of reach, the potential exists for the development of numerical methods. A three-dimensional simulation of dislocation dynamics and interactions is described, the emphasis being put on the main two types of dislocation properties, namely those which can be described within an elastic frame and those which stem from core properties. Three examples are given which illustrate different domains of application of such numerical modelling: Ni3Al and its anomalous flow properties, dislocation patterning in pure FCC crystals and the transition between quasi-static and dynamic testing.
引用
收藏
页码:2003 / 2012
页数:10
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