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）―

• 菅原 勝彦

  熊本大学大学院　自然科学研究科

• 鈴木 康正

  熊本大学大学院　自然科学研究科

書誌事項

タイトル別名

• Closing Mode Fracture at Joint-tips-Homogenized Crack Propagation in Rock (1st Report)-
• ヘイコウ モード ノ セツリ センタン ハカイ ガンバン ナイ ノ キンシツカ キレツ シンテン ダイ1ポウ
• Homogenized Crack Propagation in Rock (1<SUP>st</SUP> Report)
• 岩盤内の均質化亀裂進展（第１報）

抄録

Fracture at joint-tips in a closing mode (K_I < 0), which is opposite from the opening mode (K_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 {K_IB, K_IIB} 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 K_IIB = 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.

収録刊行物

• 資源と素材

  資源と素材 122 (9), 442-450, 2006

  一般社団法人 資源・素材学会

キーワード

• 岩盤
• 破壊
• 均質化
• 閉口モード
• 最大周方向応力基準
• 変位不連続法

詳細情報

• CRID: 1390001206049872512
• NII論文ID: 10018779385
• NII論文ID: 80018943468
• NII書誌ID: AN10062646
• DOI: 10.2473/shigentosozai.122.442
• ISSN: 18806244
• ISSN: 09161740
• NDL書誌ID: 8528959
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8528959
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可