Analysis of Mode I Interlaminar Fracture Behavior in Unidirectional CFRP Laminates (1st Report, Examination of Interlaminar Fracture Toughness)

Kazuo Arakawa; Kiyoshi Takahashi

doi:10.1299/kikaia.59.2831

Analysis of Mode I Interlaminar Fracture Behavior in Unidirectional CFRP Laminates (1st Report, Examination of Interlaminar Fracture Toughness)

Kazuo Arakawa, Kiyoshi Takahashi

Research output: Contribution to journal › Article › peer-review

Abstract

Mode I interlaminar fracture was studied using double cantilever beam (DCB) specimens of unidirectional carbon fiber/epoxy composites. An improved analytical model was introduced to analyze the crack opening displacement (COD), compliance (C) and fracture toughness (G_i) as a function of the modulus at the vicinity of a crack tip. The COD solution was derived and compared with the COD profiles measured by moire interferometry. The result showed that the COD solution can predict all the important qualitative features of the measured COD profiles; also, the quantitative agreement was sufficiently good. It is found that the modulus plays an important role in increasing the values of COD, C and G_i.

Original language	English
Pages (from-to)	2831-2836
Number of pages	6
Journal	Transactions of the Japan Society of Mechanical Engineers Series A
Volume	59
Issue number	568
DOIs	https://doi.org/10.1299/kikaia.59.2831
Publication status	Published - 1993

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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abstract = "Mode I interlaminar fracture was studied using double cantilever beam (DCB) specimens of unidirectional carbon fiber/epoxy composites. An improved analytical model was introduced to analyze the crack opening displacement (COD), compliance (C) and fracture toughness (Gi) as a function of the modulus at the vicinity of a crack tip. The COD solution was derived and compared with the COD profiles measured by moire interferometry. The result showed that the COD solution can predict all the important qualitative features of the measured COD profiles; also, the quantitative agreement was sufficiently good. It is found that the modulus plays an important role in increasing the values of COD, C and Gi.",

author = "Kazuo Arakawa and Kiyoshi Takahashi",

year = "1993",

doi = "10.1299/kikaia.59.2831",

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T1 - Analysis of Mode I Interlaminar Fracture Behavior in Unidirectional CFRP Laminates (1st Report, Examination of Interlaminar Fracture Toughness)

AU - Arakawa, Kazuo

AU - Takahashi, Kiyoshi

PY - 1993

Y1 - 1993

N2 - Mode I interlaminar fracture was studied using double cantilever beam (DCB) specimens of unidirectional carbon fiber/epoxy composites. An improved analytical model was introduced to analyze the crack opening displacement (COD), compliance (C) and fracture toughness (Gi) as a function of the modulus at the vicinity of a crack tip. The COD solution was derived and compared with the COD profiles measured by moire interferometry. The result showed that the COD solution can predict all the important qualitative features of the measured COD profiles; also, the quantitative agreement was sufficiently good. It is found that the modulus plays an important role in increasing the values of COD, C and Gi.

AB - Mode I interlaminar fracture was studied using double cantilever beam (DCB) specimens of unidirectional carbon fiber/epoxy composites. An improved analytical model was introduced to analyze the crack opening displacement (COD), compliance (C) and fracture toughness (Gi) as a function of the modulus at the vicinity of a crack tip. The COD solution was derived and compared with the COD profiles measured by moire interferometry. The result showed that the COD solution can predict all the important qualitative features of the measured COD profiles; also, the quantitative agreement was sufficiently good. It is found that the modulus plays an important role in increasing the values of COD, C and Gi.

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Analysis of Mode I Interlaminar Fracture Behavior in Unidirectional CFRP Laminates (1st Report, Examination of Interlaminar Fracture Toughness)

Abstract

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