Open AccessDevelopment of a continuum plasticity model for the commercial finite element code ABAQUS
Author(s) -
Mohsen Safaei,
Wim De Waele
Publication year - 2011
Publication title -
sustainable construction and design
Language(s) - English
Resource type - Journals
eISSN - 2295-9092
pISSN - 2032-7471
DOI - 10.21825/scad.v2i2.20525
Subject(s) - yield surface , von mises yield criterion , finite element method , subroutine , stress space , plane stress , isotropy , plasticity , mathematics , computer science , structural engineering , constitutive equation , engineering , materials science , physics , quantum mechanics , composite material , operating system
The present work relates to the development of computational material models for sheet metalforming simulations. In this specific study, an implicit scheme with consistent Jacobian is used forintegration of large deformation formulation and plane stress elements. As a privilege to the explicitscheme, the implicit integration scheme is unconditionally stable. The backward Euler method is used toupdate trial stress values lying outside the yield surface by correcting them back to the yield surface atevery time increment. In this study, the implicit integration of isotropic hardening with the von Mises yieldcriterion is discussed in detail. In future work it will be implemented into the commercial finite element codeABAQUS by means of a user material subroutine.