A simple isotropic-distortional hardening model and its application in elastic-plastic analysis of localized necking in orthotropic sheet metals

被引：87

作者：

Aretz, Holger ^{[1
]}

机构：

[1] Hydroaluminium Deutschland GmbH, Res & Dev, D-53117 Bonn, Germany

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 2008年 / 24卷 / 09期

关键词：

localized necking; plastic instability; distortional hardening; sheet metal forming;

D O I：

10.1016/j.ijplas.2007.10.002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In the present work an elastic-plastic constitutive model including mixed isotropic-distortional hardening is presented. The approach is very simple and requires only experimental data that are part of the standard characterization of sheet metals. It is shown that the distortional hardening contribution can be of considerable importance for localized necking prediction in orthotropic sheet metals. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：1457 / 1480

页数：24