Intensity of a Plastic Singular Stress Field at the Notch Tip

• USHIJIMA Kuniharu

  Graduate School of Engineering, Science University of Tokyo

• CHEN Dai-Heng

  Faculty of Engineering, Science University of Tokyo

• KITTE Naoto

  HT Design Dept. 1, HT Design Div., Handy Terminals Group, CANON ELECTRONICS INC.

抄録

In the present study, the relation between the plastic and the elastic stress intensity factors, K_p and K_e, for various V-shaped notch problems is studied by using the finite element analysis. Detailed results for mode I under plane stress and plane strain conditions are investigated. Based on the numerical results, it is found that there is a one-to-one correspondence between K_p and K_e, even when the load is so large that the condition of the small scale yielding is not satisfied. Also, it is found that the values of K_p^1-λe/K_e^1-λp for various notch problems depend only on the notch opening angle γ and hardening exponent n. This enables one to evaluate the factor K_p for various notch problems without any plastic stress analysis.

収録刊行物

• JSME International Journal Series A Solid Mechanics and Material Engineering

  JSME International Journal Series A Solid Mechanics and Material Engineering 45 (2), 170-176, 2002

  一般社団法人 日本機械学会

キーワード

• Plasticity
• Nonlinear Problem
• Stress Intensity Factor
• Notch
• Stress Singularity
• Plane Problem

詳細情報

• CRID: 1390001206494007936
• NII論文ID: 10016190054
• NII書誌ID: AA11179396
• DOI: 10.1299/jsmea.45.170
• ISSN: 13475363
• ISSN: 13447912
• NDL書誌ID: 6137916
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6137916
• Web Site: http://www.jstage.jst.go.jp/article/jsmea/45/2/45_2_170/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
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