Crack initiation and propagation in materials with randomly distributed holes

Ahmed Al-Ostaz, Iwona Jasiuk

Research output: Contribution to journalArticlepeer-review


We investigate fracture of both elastic-brittle (epoxy) and ductile (aluminum) sheets, each containing circular holes, and subjected to a uniaxial tension. The holes are distributed at random but with a restriction of no overlap and a minimum separation distance. In this study, which includes both numerical and experimental results, we consider a single configuration of holes but several samples and find that crack paths in these perforated sheets are not unique. This illustrates the need for a stochastic fracture mechanics analysis for this class of problems.

Original languageEnglish (US)
Pages (from-to)395-420
Number of pages26
JournalEngineering Fracture Mechanics
Issue number5-6
StatePublished - 1997
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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