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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 55
ADVANCES IN COMPUTATIONAL STRUCTURAL MECHANICS
Edited by: B.H.V. Topping
Paper XIV.3

Elastic-Plastic Large Strain - Large Displacement Analysis of Sheet Metal Forming Processes

H. Darendeliler

Mechanical Engineering Department, Middle East Technical University, Ankara, Turkey

Full Bibliographic Reference for this paper
H. Darendeliler, "Elastic-Plastic Large Strain - Large Displacement Analysis of Sheet Metal Forming Processes", in B.H.V. Topping, (Editor), "Advances in Computational Structural Mechanics", Civil-Comp Press, Edinburgh, UK, pp 343-348, 1998. doi:10.4203/ccp.55.14.3
Abstract
An elastic-plastic finite element formulation is presented for three dimensional deformation analysis of sheet metal forming operations. The updated Lagrangian type formulation is based on membrane theory to analyze the large strain-large displacements. The sheet is considered isotropic that obeys Mises flow theory. The deformation is rate-insensitive and work-hardening property of the material is incorporated. Coulomb friction is applied between the sheet and punch and sheet and die interfaces. Triangular flat elements are employed in the finite element discreatization. Comparison of the finite element results with the experimental data is also given.

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