Prediction of spring-back in anisotropic sheet metals

被引：9

作者：

Nguyen, VT ^{[1
]}

Chen, Z

Thomson, PF

机构：

[1] Monash Univ, Sch Phys & Mat Engn, Clayton, Vic 3168, Australia

[2] Boeing Hawker De Havilland, Port Melbourne, Vic, Australia

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2004年 / 218卷 / 06期

关键词：

plastic anisotropy; Bauschinger effect; draw bending; work hardening; non-quadratic yield; spring-back; sheet metal forming; aluminium alloy;

D O I：

10.1243/095440604774202295

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Constitutive equations for plane stress problems based on the modified form of a nonquadratic yield criterion suitable for aluminium alloy sheet were derived by Barlat et al. to account for the Bauschinger effect (BE). Numerical predictions of spring-back based on the original yield function and its modified form were performed and compared with the results of draw-bending tests. The results show the necessity of including the BE in the constitutive equations to enhance the accuracy in predicting spring-back.

引用

页码：651 / 661

页数：11

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