Simulation of springback in V-bending process by elasto-plastic finite element method with consideration of Bauschinger effect

被引：0

作者：

Uemori, T ^{[1
]}

Okada, T ^{[1
]}

Yoshida, F ^{[1
]}

机构：

[1] Hiroshima Univ, Dept Mech Engn, Higashihiroshima 739, Japan

来源：

METALS AND MATERIALS-KOREA | 1998年 / 4卷 / 03期

关键词：

springback; Bauschinger effect; isotropic hardening; kinematic hardening; stress-reversal; V+-bending process;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the prediction of springback in sheet metal forming in terms of the description of the Bauschinger effect. It addresses three different types of constitutive models: an iso-tropic hardening model (IH model), a linearly kinematic hardening model (LK model), and a model of combined linearly-nonlinearly kinematic and isotropic hardening (L-NK+IH model). The springback predicted by the L-NK+IH model is found to be more pronounced than that by the III and the LK model. It is caused by the stress-strain response characterized by the gradual transition from fully elastic to plastic behavior during stress-reversal, which is essential to the L-NK+IH model.

引用

页码：311 / 314

页数：4