• Title/Summary/Keyword: 수정된 Irwin 모델

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Plastic Zone Size in a Ductile Layer with an Interface Crack - Case Study for Dissimilar Substrates - (계면균열을 가진 연성접합재의 소성영역 크기 - 이종 모재의 경우 -)

  • Kim, Dong-Hak;Kang, Ki-Ju
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.27 no.6
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    • pp.898-904
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    • 2003
  • Using the modified Irwin model and the modified Dugdale model, the plastic zone size near the interface crack tip in a ductile layer bonding two dissimilar elastic substrates is predicted. Validity of the models is examined by finite element method. The effects of several factors such as the mode mixity, T-stress and material properties are explored. The plastic zone size significantly decreases with the Poisson's ratio of the ductile layer.