Numerical modelling of fracture based on coupled cellular automata finite element approach

Abstract

Investigation of failure of Dual Phase steels on the basis of the developed concurrent cellular automata finite element model is the subject of the present paper. Physical background of phenomena responsible for failure in these steels is described first. Then details of the developed random cellular automata model are presented. Particular attention is put on proper definition of the transition rules describing initiation and propagation of fractures across the microstructure. Finally combined cellular automata finite element model is established. Examples of obtained results are also presented within the paper.