Fracture mechanics of bonding interface: A cohesive zone model

K. Kishimoto, M. Omiya, W. Yang

研究成果: Article査読

15 被引用数 (Scopus)

抄録

The initiation of the interface crack propagation is analyzed by the finite element method in which a cohesive model is embedded along the line extending ahead of the crack-tip. The constitutive equation of the cohesive model formulated by Ma and Kishimoto is employed. The critical stress intensity factors at the crack initiation are evaluated for a wide range of bimaterial constant and the fracture boundary curves are obtained. It is shown that if the characteristic length existing in the definition of the interface stress intensity factors is chosen suitably the fracture boundary curves converges to one unique boundary curve, which is considered to be the intrinsic fracture boundary curve. The effect of plastic deformation is also examined. The results show that the fracture boundary curves are influenced by the plastic deformation especially when the shear stress is dominant.

本文言語English
ページ(範囲)198-206
ページ数9
ジャーナルSensors and Actuators, A: Physical
99
1-2
DOI
出版ステータスPublished - 2002 4月 30
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 器械工学
  • 凝縮系物理学
  • 表面、皮膜および薄膜
  • 金属および合金
  • 電子工学および電気工学

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