Влияние параметров разбиения конечно-элементной модели на точность результатов моделирования процесса поперечно-клиновой прокатки

Abstract

It is show, that during cross-wedge rolling simulation process of Ls-Dyna package using FEM, redivision of the workpiece finite-element grid is required. This is due to a sharp change of the metal flow direction during forming process of CWR. Application of r-adaptive finite-element grid redivision, in the places of big plastic deformation, has made it possible to improve the quality of the mathematical model of the process and clarify the parameters of the stress-strain state in dangerous, in terms of destruction, the areas of procurement.