Numerical simulation of the mechanical response during strain path change: application to Zn alloys

被引：1

作者：

Borodachenkova, Marina ^{[1
]}

Wen, Wei ^{[1
]}

Barlat, Frederic ^{[1
,2
]}

Pereira, Antonio ^{[1
]}

Gracio, Jose ^{[1
]}

机构：

[1] Univ Aveiro, Dept Mech Engn, Ctr Mech Technol & Automat, P-3810 Aveiro, Portugal

[2] Pohang Univ Sci & Technol POSTECH, GIFT, Pohang 790784, Gyeongbuk, South Korea

来源：

11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014 | 2014年 / 81卷

关键词：

Hardening behavior; Strain path change; Bauschinger effect; Visco-plastic self-consistent model; Zn alloys; PLASTIC ANISOTROPY; POLYCRYSTALS; BEHAVIOR; MODEL;

D O I：

10.1016/j.proeng.2014.10.147

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure-based hardening model (Beyerlein and Tome, 2007), that accounts for the dislocation reversal-related mechanisms and the cut-through effect, is extended to HCP metals. This model, which is embedded in the visco-plastic self-consistent framework, is applied in this work to predict the mechanical response of Zn alloy during strain path change. The predicted mechanical behavior and texture evolution during pre-loading and reloading is in good agreement with experimental observations. The change in hardening behavior after reloading is well reproduced by this model. The contributions of the different mechanisms are also analyzed. (C) 2014 Published by Elsevier Ltd.

引用

页码：1300 / 1305

页数：6

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