|
Abstract:
In this paper, numerical analysis of deep drawing process of sheet
metal is carried out, using membrane shell model, adopting total
Lagrangian formulation and J2 flow rule. Exponential stress-strain
relation of the sheet and Coulomb friction at the contacting surface
between the sheet and punch or die assumed. Normal anisotropy of the
sheet and effects of the binder are taken into account. Criterion to
predict flange wrinkling and fracture are introduced. The computation is
compared with experimental data.
Key words: 板材拉深 数值计算 有限元分析
国家自然科学基金资助项目. Received 198907,
received in revised form 198911
|