材料の加工硬化特性を考慮したき裂結合力モデル Improvement of the Strip Yield Model Considering the Work Hardening Effect of Materials

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The strip yield model is known as one of numerical models for the estimation of the crack opening displacement and the plastic zone ahead of a crack tip. This model, however, is not able to allow the consideration of the work hardening effect of materials because this model is based on the elastic-perfect plastic material behavior.Authors developed the strip yield model allowing the consideration of work hardening effects beyond the small scale yielding.This model incorporates a nonuniform cohesive stress, which is a function of the material work hardening coefficient (the second modulus or the strain hardening exponent). The relationship between the crack opening displacement over a fictitious crack obtained by the strip yield model and the plastic strain distribution in the vicinity of a crack tip by the elastic-plastic finite element analyses is investigated. The model proposed with the weight function technique is applicable to the estimation of crack opening displacement for arbitrary two-dimensional crack problem.

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  • 日本船舶海洋工学会論文集 = Journal of the Japan Society of Naval Architects and Ocean Engineers

    日本船舶海洋工学会論文集 = Journal of the Japan Society of Naval Architects and Ocean Engineers (14), 39-46, 2011-12-01

    公益社団法人 日本船舶海洋工学会

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各種コード

  • NII論文ID(NAID)
    10030137046
  • NII書誌ID(NCID)
    AA12057769
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    18803717
  • NDL 記事登録ID
    023529057
  • NDL 請求記号
    Z74-E724
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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