Cohesive modeling of quasi-static fracture in functionally graded materials

Soma Sekhar V. Kandula, Jorge Abanto-Bueno, John Lambros, Philippe H Geubelle

Research output: Contribution to journalArticlepeer-review


A spatially varying cohesive failure model is used to simulate quasi-static fracture in functionally graded polymers. A key aspect of this paper is that all mechanical properties and cohesive parameters entering the analysis are derived experimentally from full-scale fracture tests allowing for a fit of only the shape of the cohesive law to experimental data. The paper also summarizes the semi-implicit implementation of the cohesive model into a cohesive-volumetric finite element framework used to predict the quasi-static crack initiation and subsequent propagation in the presence of material gradients.

Original languageEnglish (US)
Pages (from-to)783-791
Number of pages9
JournalJournal of Applied Mechanics, Transactions ASME
Issue number5
StatePublished - Sep 2006

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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