Sheet metal forming simulation using finite elastoplasticity with mixed isotropic/kinematic hardening

被引：4
|
作者：
Chatti, Sami [1 ]
Chtioui, Narjess [1 ]
机构：
[1] ENISO, Lab Mecan LR 11 ES 36, BP 264, Sousse Erriadh 4023, Tunisia
来源：
EUROPEAN JOURNAL OF COMPUTATIONAL MECHANICS | 2011年 / 20卷 / 7-8期
关键词：
elastoplasticity; finite strain; FEM; kinematic hardening; springback;
D O I：
10.3166/EJCM.20.427-453
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
A numerical formulation is presented for anisotropic elastoplasticity behavior in finite strain with non-linear isotropic/kinematic hardening model. Non-linear kinematic hardening is modeled by the Lemaitre-Chaboche law with the aim of considering cyclic deformation phenomena. User-defined material subroutines are developed based on Hill's quadratic yield function for both ABAQUS-Explicit (VUMAT) and ABAQUS-Standard (UMAT). For validation purpose, the tension-compression and cyclic shear tests are simulated. Several sheet forming processes including contact, anisotropic plasticity, elastic modulus variation with plastic strain and springback effects are simulated. Numerical results are compared with experimental data.
引用
收藏
页码：427 / 453
页数：27
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