Predicting Plastic Flow Behaviour, Failure Mechanisms and Severe Deformation Localisation of Dual-Phase Steel using RVE Simulation

• DOI: 10.15282/ijame.18.1.2021.19.0654
• Publication Date: 2021-04-05T07:20:08Z
• Authors: A. K. Rana; P. P. Dey
• Keywords: Volume fraction; Representative elementary volume; Dual-phase steel; Flow stress

In this work, the von Mises stress and plastic strain distribution of Ferrite-Martensite–Dual-Phase (FMDP) steels are predicted at various stages deformation. The failure modes volume fraction effect identified based on Representative Volume Element (RVE). FMDP steel consists a typical ferrite-matrix phase, in which martensite-islands dispersed. Recently increasingly used to car parts demand. 2D-RVEs also utilised predict orientations martensite phase steels. Based position element, boundary conditions (BC) given RVE microstructures. examined form severe localisation. While islands microstructure varies, as result, deformation inhomogeneity increases with rise fraction. results numerical computation trend experimental shown literature compared. This is signifying that overall macro-behaviour steel, consequence stress-strain partitioning influence martensite-island fractions (MVFs), can be by finite element (FE) 2D-RVE modelling.