Interlaminar fracture analysis of composite DCB specimens

Kazuo Arakawa, K. Takahashi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Mode I interlaminar fracture was studies using double cantilever beam (DCB) specimens of unidirectional carbon fiber/epoxy composites. An improved analytical model was introduced to study the crack opening displacement (COD), compliance (C) and fracture toughness (GI) as a function of the material stiffness ({left semidirect product}) ahead of the crack front. The COD expression was derived and compared with the COD profiles near the crack tip measured by moiré interferometry. Results showed that the COD expression can predict all the important qualitative features of the measured COD profiles; also, the quantitative agreement at the loading point was very good. It was found that {left semidirect product} plays an important role in evaluating the values of COD, C and GI.

Original languageEnglish
Pages (from-to)277-287
Number of pages11
JournalInternational Journal of Fracture
Volume74
Issue number3
DOIs
Publication statusPublished - Aug 1 1985

Fingerprint

Cantilever Beam
Cantilever beams
Crack
Composite
Cracks
Composite materials
Fracture Toughness
Carbon Fiber
Epoxy
Crack Tip
Interferometry
Compliance
Crack tips
Analytical Model
Carbon fibers
Fracture toughness
Analytical models
Stiffness
Predict

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Modelling and Simulation
  • Mechanics of Materials

Cite this

Interlaminar fracture analysis of composite DCB specimens. / Arakawa, Kazuo; Takahashi, K.

In: International Journal of Fracture, Vol. 74, No. 3, 01.08.1985, p. 277-287.

Research output: Contribution to journalArticle

Arakawa, Kazuo ; Takahashi, K. / Interlaminar fracture analysis of composite DCB specimens. In: International Journal of Fracture. 1985 ; Vol. 74, No. 3. pp. 277-287.
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