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Simulation of metal forming processes with finite element methods
Author(s) -
Gadala M. S.,
Wang J.
Publication year - 1999
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19990410)44:10<1397::aid-nme496>3.0.co;2-3
Subject(s) - finite element method , metal forming , forging , eulerian path , lagrangian , extrusion , boundary value problem , computer simulation , mathematics , boundary (topology) , deformation (meteorology) , forming processes , computer science , mechanical engineering , engineering , structural engineering , mathematical analysis , materials science , simulation , metallurgy , composite material
The traditional Lagrangian and Eulerian formulations in finite elements posses some inherent difficulties when used in simulation of metal‐forming processes or general finite strain problems. A more general method of formulation, the Arbitrary Lagrangian–Eulerian (ALE), is developed to overcome such difficulties. A brief description of the ALE formulation is given with emphasis on the underlying differences between the developed formulation and existing ones in the literature. Some numerical algorithms for incorporating large deformation effect are presented. Typical metal‐forming processes such as strip rolling, metal extrusion and punch forging are simulated using the ALE formulation and results are compared with available numerical and experimental ones. Special attention is given to numerical characteristics of the simulation, application of boundary condition and their effect on the results. Copyright © 1999 John Wiley & Sons, Ltd.