準静的載荷下でのき裂の不安定成長の実験と数値解析による検討

• 沖中 知雄

  近畿大学理工学部社会環境工学科

書誌事項

タイトル別名

• Experimental and Numerical Study on Unstable Crack Growth under Quasi-Static Loading Condition
• ジュンセイテキサイカカ デ ノ キレツ ノ フアンテイ セイチョウ ノ ジッケン ト スウチ カイセキ ニ ヨル ケントウ

抄録

Unstable crack growth under quasi-static loading condition is studied both experimentally and numerically in this work. Image analysis is applied to the experimental study. Stress field around the propagating crack tip is visualized by means of photo-elastic technique, and images of the unstable crack growth and the visualized stress field around the propagating crack-tip are captured by the ultra-high-speed camera with the frame rate of 1000000fps. Images are successfully captured at every 0.3mm crack growth. Next, the numerical simulation technique to simulate the unstable crack growth without the rearrangment of nodes and elements is proposed. In the proposed technique, X-FEM is extended to include the dynamic phenomena. The result of the simulation is directly compared with the experimental observation. As a result of comparison, numerically simulated fringe patterns have a good agreenment with the experimentally observed ones, and hence, it is shown that the proposed algorithm has a sufficient accuracy.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 75 (757), 1193-1201, 2009

  一般社団法人 日本機械学会

キーワード

• Growing Crack
• Dynamic Photo-Elasticity
• FEM Analysis
• X-FEM

詳細情報

• CRID: 1390282679454280064
• NII論文ID: 110007358714
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.75.1193
• ISSN: 18848338
• ISSN: 03875008
• NDL書誌ID: 10447245
• Web Site: https://kindai.repo.nii.ac.jp/records/1329
• Web Site: http://id.ndl.go.jp/bib/10447245
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10447245
• Web Site: https://www.jstage.jst.go.jp/article/kikaia1979/75/757/75_KJ00005697196/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可