Analysis of Mode I Interlaminar Fracture Behavior in Unidirectional CFRP Laminates (2nd Report, Examination of Interlaminar Deformation)

Kazuo Arakawa, Kiyoshi Takahashi

Research output: Contribution to journalArticle


Double cantilever beam (DCB) specimens were used to study mode I interlaminar fracture of unidirectional carbon fiber/epoxy composites. An improved analytical model was introduced to analyze the crack opening displacement {COD) of the DCB specimen. Theoretical values of COD were compared with those measured by moiré interferometry to evaluate an effective interlaminar tensile modulus and strain in the vicinity of a crack tip. The results showed that the modulus plays an important role in increasing the values of COD, and that there is a correlation between the modulus and the strain.

Original languageEnglish
Pages (from-to)967-971
Number of pages5
JournalTransactions of the Japan Society of Mechanical Engineers Series A
Issue number572
Publication statusPublished - Jan 1 1994


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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