Publication details for Professor Ashraf Osman

Birchall, T.J. & Osman, A. S. (2013), On the formulation of thermodynamically-consistent viscoplastic-damage constitutive models, in Osman, A.S., Coombs, W.M. & Koziara, T. eds, CM13: International Conference on Computational Mechanics. Durham, UK, Durham.

• Publication type: Conference Paper
• ISSN/ISBN: 9780953555840
• Keywords: Viscoplasticity, Damage, Creep, Constitutive model, Hyperplasticity.
• Further publication details on publisher web site
• Durham Research Online (DRO) - may include full text

Author(s) from Durham

• Professor Ashraf Osman

Abstract

This paper illustrates the formulation of viscoplastic-damage constitutive models using the framework of hyperplasticity.
The entire constitutive behaviour is derived from only two scalar potentials; a free energy potential and a dissipation
potential. This ensures that the model obeys the laws of thermodynamics.

Notes

Conference dates: 25-27 March 2013