THE PLAST3 SYSTEM AND ITS APPLICATION TO THE SIMULATION OF AN OPEN-DIE FORGING OPERATION

Modelling large three-dimensional metal forming deformations with the finite-element program PLAST3 is presented. The program utilises the p enalty constrained method, based on the rigid-plastic flow formulation . The structure and main capabilities of this program are described. T he post-processing unit PLAPOST3 utilized for the analysis of the simu lation results in a graphical form is presented also, this unit being written in LISP language inside a commercial CAD package. A sample sol ution supported by experimental work carried out with an aluminium all oy at room temperature is included. Theoretical and experimental resul ts are analysed, good agreement between them being found.