Two-dimensional boundary element analysis of creep continuum damage problems with plastic effects

GÜN H.

Computational Materials Science, vol.41, no.3, pp.322-329, 2008 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 41 Issue: 3
  • Publication Date: 2008
  • Doi Number: 10.1016/j.commatsci.2007.04.011
  • Journal Name: Computational Materials Science
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.322-329
  • Keywords: Boundary element, Creep, Damage, Plasticity, Rupture time
  • Uşak University Affiliated: Yes

Abstract

In this paper, a quadratic boundary element formulation for elasto-plastic creep damage problems in which strains and deformations are mainly creep dominant is presented. In order to cover both plastic and creep deformations, the initial strain formulation is employed. The Euler method with automatic time-step control scheme is implemented for time integrations. Creep rupture life is predicted using a continuum damage mechanics approach. The proposed formulation is applied to the uniaxial, perforated plate and rotating disk. © 2007 Elsevier B.V. All rights reserved.