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

Kazuo Arakawa; Kiyoshi Takahashi

doi:10.1299/kikaia.60.967

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 journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	967-971
Number of pages	5
Journal	Transactions of the Japan Society of Mechanical Engineers Series A
Volume	60
Issue number	572
DOIs	https://doi.org/10.1299/kikaia.60.967
Publication status	Published - 1994

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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AB - 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.

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

Abstract

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