Dynamic fracture of functionally graded composites using an intrinsic cohesive zone model

Glaucio H. Paulino, Zhengyu Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a Cohesive Zone Model (CZM) approach for investigating dynamic failure processes in homogeneous and Functionally Graded Materials (FGMs). The failure criterion is incorporated in the CZM using both a finite cohesive strength and work to fracture in the material description. A novel CZM for FGMs is explored and incorporated into a finite element framework. The material gradation is approximated at the element level using a graded element formulation. A numerical example is provided to demonstrate the efficacy of the CZM approach, in which the influence of the material gradation on the crack branching pattern is studied.

Original languageEnglish (US)
Title of host publicationFunctionally Graded Materials VIII, FGM2004 - Proceedings of the 8th International Symposium on Multifunctional and Functionally Graded Materials, (FGM2004)
PublisherTrans Tech Publications Ltd
Pages447-452
Number of pages6
ISBN (Print)0878499709, 9780878499700
DOIs
StatePublished - Jan 1 2005
Event8th International Symposium on Multifunctional and Functionally Graded Materials, FGM2004 - Leuven, Belgium
Duration: Jul 11 2004Jul 14 2004

Publication series

NameMaterials Science Forum
Volume492-493
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other8th International Symposium on Multifunctional and Functionally Graded Materials, FGM2004
CountryBelgium
CityLeuven
Period7/11/047/14/04

Keywords

  • Branching
  • Dynamics
  • Finite element method
  • Fracture
  • Functionally graded material (FGM)
  • Graded finite element
  • Intrinsic cohesive zone model (CZM)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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