Interlaminar fracture analysis of composite DCB specimens

K. Arakawa, K. Takahashi

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)277-287
ページ数11
ジャーナルInternational Journal of Fracture
74
3
DOI
出版ステータス出版済み - 8 1985

All Science Journal Classification (ASJC) codes

  • 計算力学
  • モデリングとシミュレーション
  • 材料力学

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