From Brittle to Ductile Fracture in Disordered Materials

Clara B. Picallo, Juan M. Lopez, Stefano Zapperi, Mikko J. Alava

Research output: Contribution to journalArticleScientificpeer-review

26 Citations (Scopus)
6 Downloads (Pure)

Abstract

We introduce a lattice model able to describe damage and yielding in heterogeneous materials ranging from brittle to ductile ones. Ductile fracture surfaces, obtained when the system breaks once the strain is completely localized, are shown to correspond to minimum energy surfaces. The similarity of the resulting fracture paths to the limits of brittle fracture or minimum energy surfaces is quantified. The model exhibits a smooth transition from brittleness to ductility. The dynamics of yielding exhibits avalanches with a power-law distribution.
Original languageEnglish
Article number155502
Pages (from-to)1-4
JournalPhysical Review Letters
Volume105
Issue number15
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Keywords

  • fracture

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