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Multi‐level simulation of metal‐forming processes
Author(s) -
Kopp Reiner,
Cho MyongLae,
Souza Mauro Moraes
Publication year - 1988
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.198801624
Subject(s) - finite element method , computation , physics , thermodynamics , mathematics , mechanical engineering , materials science , engineering , algorithm
The IBF has for some years made use of finite element programmes to solve metal‐forming problems. In the course of this investigation, it has become evident that a problem‐oriented adaptation of FEM simulation to the problem in hand is beneficial in terms of computation effort. The computation time for the process parameters is optimised in a multi‐level simulation. At level 1 (global analysis) integral parameters such as the required force and required work are computed using a coarse FEM mesh. At level 2 (local analysis) an optimised number of elements is used to determine continuum mechanics parameters like stress, strain and temperature. Microscopic phenomena are simulated at level 3 (microscopic analysis), using special micro‐material elements and thermodynamic models.