Micromechanics based modeling to predict flow behavior and plastic strain localization of dual phase steels

被引：84
|
作者：
Paul, Surajit Kumar [1 ]
Kumar, Abhay [1 ]
机构：
[1] Tata Steel Ltd, R&D, Jamshedpur 831001, Bihar, India
来源：
COMPUTATIONAL MATERIALS SCIENCE | 2012年 / 63卷
关键词：
Dual phase steel; Plastic strain localization; Damage; Volume expansion of martensite; Failure modes; ORTHOTROPIC SHEET METALS; DEFORMATION-BEHAVIOR; DUCTILE FRACTURE; FAILURE MODES; TRIP STEELS; TENSILE; MORPHOLOGY; STRENGTH; NECKING;
D O I：
10.1016/j.commatsci.2012.05.061
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The current work aims to predict the flow behavior, plastic strain localization and plastic instability of dual phase (DP) steels. A microstructure based approach by means of representative volume element (RVE) is employed for this purpose. Dislocation based model is implemented to predict the flow behavior of the single phases. Ductile failure of DP steel is predicted in the form of plastic strain localization which arises due to incompatible deformation between the hard martensite and soft ferrite phases. Different failures modes arise from plastic strain localization in two DP steels are investigated on the actual microstructure by finite element method. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：66 / 74
页数：9
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