МКЭ-моделирование процесса толстолистовой прокатки. Анализ неоднородности напряженно-деформированного состояния в очаге деформации

Abstract

In recent years hot-rolled plate has more actively applied for shipbuilding, production of gas pipes of large diameters and other types of important products. In this respect the topic of high quality of products is getting more relevant. It can be ensured first of all by means of increasing the structural depressiveness, endurance, plasticity and fracture toughness of metal. In order to attain the set objectives it is necessary to ensure equal distribution of deformation within the whole section of the strip and welding of micro pores which exist in cast metal. According to the theory of rolling, parameters of stressed and strained states are determined based on the strip section on average. Modern modeling software FEM (Fine element method) allows to more precisely calculate the degree of shear deformation Λ, stressed state parameters and, and also to estimate workup of the cast metal structure during deformation.