Consistent tangent stiffness for local-nonlocal damage modelling of metals

Jonathan P. Belnoue, Giang D. Nguyen, Alexander M. Korsunsky

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

8 Citations (Scopus)

Abstract

In the present study we consider an adaptation of Nguyen's model [6] for brittle materials to the case of ductile rupture. We focus our attention on the formulation of a consistent tangent stiffness matrix which is essential for the efficiency and convergence of the implementation within a finite element framework. We demonstrate the capability of the model to generate mesh-independent results and to follow the rupture process very close to failure. Rupture analysis of thin plates of different geometry is presented (symmetric double notch-edged specimen, asymmetric double notch-edged specimen, double notch-edged specimen containing a hole). Further modifications are outlined required to simulate crack growth and paths under the conditions of creep and fatigue. (C) 2009 Elsevier B.V. All rights reserved

Original languageEnglish
Title of host publicationMESOMECHANICS 2009
EditorsAM Korsunsky, D Dini, GC Sih
Place of PublicationAMSTERDAM
PublisherAmsterdam:Elsevier
Pages177-180
Number of pages4
ISBN (Print)*****************
DOIs
Publication statusPublished - 2009
EventMesomechanics 2009 Conference - Oxford, United Kingdom
Duration: 24 Jun 200926 Jun 2009

Conference

ConferenceMesomechanics 2009 Conference
CountryUnited Kingdom
CityOxford
Period24/06/0926/06/09

Cite this