スペックル法と有限要素法による混合モード界面き裂の応力拡大係数

• 町田 賢司

書誌事項

タイトル別名

• Stress Intensity Factors of a Mixed-Mode Interface Crack by Speckle Photography and Finite Element Analysis.
• スペックルホウ ト ユウゲン ヨウソホウ ニヨル コンゴウ モード カイメン

抄録

The stress-intensity factors of a mixed-mode interface crack were measured by a speckle photography. A compact normal and shear specimen with an interface crack was employed. This specimen enables us to carry out the experiment under various kinds of mixed-mode loading. A steel and an epoxy resin were used as the dissimilar materials. The displacement along the crack lines at the free surface was measured by the speckle photography. The K₁ and K₁₁ values were determined by a least squares method using displacement data along the crack lines. The three-dimensional finite element analysis was carried out on the same specimen. The complex stress-intensity factor K associated with an elastic interface crack was discussed from three different approaches : virtual crack extension method, modified crack closure integral and displacement extrapolation. An accuracy of stress intensity factors obtained by the speckle photography was discussed by comparison of results obtained by the finite element analysis.

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 64 (618), 284-289, 1998

  一般社団法人 日本機械学会

キーワード

• Speckle Photography
• Finite Element Method
• Stress Intensity Factor
• Interface Crack
• Mixed Mode
• Virtual Crack Extension Method
• Modified Crack-Closure Integral
• Displacement Extrapolation

詳細情報

• CRID: 1390001204448362624
• NII論文ID: 110002374426
• NII書誌ID: AN0018742X
• DOI: 10.1299/kikaia.64.284
• ISSN: 18848338
• ISSN: 03875008
• NDL書誌ID: 4411589
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4411589
• Web Site: http://www.jstage.jst.go.jp/article/kikaia1979/64/618/64_618_284/_pdf
• 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