In:
Journal of Engineering for Industry, ASME International, Vol. 112, No. 2 ( 1990-05-01), p. 150-154
Kurzfassung:
A second order scheme for the time discretization of the elasto-plastic or elasto-viscoplastic behavior is proposed, based on a velocity approach. The complete set of equations is given for the evolution problem in the case of small rotations approximation. The method is quite general and may be applied to a large class of constitutive equations. The finite element discretization is briefly outlined and it is shown that the procedure is quite similar to that of previous displacement formulations. A numerical example concerning the sheet metal forming process, with an elasto-viscoplastic behavior and a membrane approximation, is presented. The numerical tests show a considerable improvement in accuracy for a given increment of time.
Materialart:
Online-Ressource
ISSN:
0022-0817
Sprache:
Englisch
Verlag:
ASME International
Publikationsdatum:
1990
