閉口モードの節理先端破壊 : 岩盤内の均質化亀裂進展(第1報) Closing Mode Fracture at Joint-tips : Homogenized Crack Propagation in Rock (1^<st> Report)

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Fracture at joint-tips in a closing mode (<I>K<SUB>I</SUB></I> < 0), which is opposite from the opening mode (<I>K<SUB>I</SUB></I> > 0), is discussed upon an analysis of the pure mode I crack propagation from tips of kinked joints, taking an overall slide on the joint surface and a possible closure of the joint into consideration. The stress intensity factors {<I>K<SUB>IB</SUB></I>, <I>K<SUB>IIB</SUB></I>} at tips of kinks are accurately analyzed by the Stress Compensation-Displacement Discontinuity Method (SC-DDM), and they are successfully applied to the pure mode I crack propagation analysis, which is conditioned only by <I>K<SUB>IIB</SUB></I> = 0. The fracture initiation in the closing mode is evaluated by minimizing the size of kink and open-crack in the model, and it is clarified that the fracture locus in the closing mode is well described by the maximum circumferential stress criterion which is widely used to evaluate the fracture initiation in the mixed mode of the opening mode and in-plane sliding mode.

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  • 資源と素材 : 資源・素材学会誌

    資源と素材 : 資源・素材学会誌 122(9), 442-450, 2006-10-04

    The Mining and Materials Processing Institute of Japan

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各種コード

  • NII論文ID(NAID)
    10018779385
  • NII書誌ID(NCID)
    AN10062646
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09161740
  • NDL 記事登録ID
    8528959
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-315
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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