Debonding mechanisms in the presence of an interphase in composites

Y. F. Liu*, Y. Tanaka, C. Masuda

*この研究の対応する著者

研究成果: Article査読

20 被引用数 (Scopus)

抄録

The debonding mechanism of an interphase in layered and fiber-reinforced composites was investigated with an emphasis on crack deflection and penetration. A single-edged notched model consisting of three phases was analyzed by the boundary element method. The dependence of elastic fields involved in the model on elastic constant combinations was revealed. Interfacial debonding other than the competition between crack deflection and penetration may be initiated due to the high tensile and shear stress concentration before a main crack propagates to meet the next interface. The ratio of energy release rates for infinitesimal deflecting and penetrated cracks, defined as R = Gd/Gp, was computed when a main crack reached an interphase interface. The results obtained modified those for two-phase models. Discussion regarding fracture sequences observed in Ti-15-3 alloy reinforced with unidirectionally aligned SCS-6 fiber was made.

本文言語English
ページ(範囲)5237-5247
ページ数11
ジャーナルActa Materialia
46
15
出版ステータスPublished - 1998 9月 18
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 電子材料、光学材料、および磁性材料
  • 金属および合金

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