Application of explicit FE codes to simulation of sheet and bulk metal forming processes

摘要

This paper presents the application of an explicit dynamic finite element code for simulation ofmetal forming processes, of both sheet and bulk forming. The experiences reported here have beengained during the development and use of our own explicit program Stampack. An originalformulation of a triangular shell element without rotational degrees of freedom is reviewed combiningthe explicit sheet forming simulation with the implicit springback analysis as well as theparallelization of the explicit program described. An extension of a finite element code for coupledthermomechanical analysis is discussed. A new thermomechanical constitutive model developed bythe authors and implemented in the program is presented. Numerical examples illustrate some of thepossibilities of the finite element code developed.