Strain energy release rate for off-axis ply cracking in laminates composites

Maria Kashtalyan, C. Soutis

Research output: Contribution to journalArticlepeer-review

Abstract

Strain energy release rate associated with matrix cracking in the θ- layer of unbalanced symmetric [0/θ], composite laminate is predicted analytically using a 2-D shear lag stress analysis and the Equivalent Constraint Model (ECM). Its dependence on the crack density and ply orientation angle is examined for glass/epoxy and carbon/epoxy laminates. Suitability of a mixed mode fracture criterion to predict the cracking onset strain is discussed.
Original languageEnglish
Pages (from-to)L3-L8
Number of pages6
JournalInternational Journal of Fracture
Volume112
Issue number2
DOIs
Publication statusPublished - Nov 2001

Keywords

  • Mechanical Engineer
  • Civil Engineer
  • Energy Release Rate
  • Stress Analysis
  • Mode Fracture

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