APPLICATION OF EXPLICIT FE CODES TO SIMULATION OF SHEET AND BULK METAL-FORMING PROCESSES

This paper presents the application of an explicit dynamic finite elem ent code for simulation of metal forming processes, of both sheet and bulk forming. The experiences reported here have been gained during th e development and use of our own explicit program Stampack. An origina l formulation of a triangular shell element without rotational degrees of freedom is reviewed combining the explicit sheet forming simulatio n with the implicit springback analysis as well as the parallelization of the explicit program described. An extension of a finite element c ode for coupled thermomechanical analysis is discussed. A new thermome chanical constitutive model developed by the authors and implemented i n the program is presented. Numerical examples illustrate some of the possibilities of the finite element code developed. (C) 1998 Elsevier Science S.A. All rights reserved.