Intensity of a Plastic Singular Stress Field at the Notch Tip(Stress Analysis)

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概要

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• 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^1-λe_p/K^1-λp_e 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.

• 一般社団法人日本機械学会の論文
• 2002-04-15

著者

• Ushijima Kuniharu

  Graduate School Of Engineering Science University Of Tokyo

• Chen Dai-heng

  Faculty Of Engineering Science University Of Tokyo

• Chen Dai-heng

  Faculty Of Computer Science And Systems Engineering Kyushu Institute Of Technology

• KITTE Naoto

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

• Kitte Naoto

  Ht Design Dept. 1 Ht Design Div. Handy Terminals Group Canon Electronics Inc.

• Ushijima Kuniharu

  Graduate School of Engineering, Science University of Tokyo

• Chen Dai-Heng

  Faculty of Engineering, Science University of Tokyo

関連論文

• Analysis of Elastodynamic Problems Based on the Principle of Superposition : Extension of the Body Force Method to Elastodynamic Problems
• Condition for Occurrence of Logarithmic Stress Singularity
• Stress Intensity Factor at the Edge Point of a Bonded Strip under Thermal Loading
• Plane Problem of Cracks Generated from the Interface of an Elliptical Inclusion
• Intensity of a Plastic Singular Stress Field at the Notch Tip(Stress Analysis)
• Analysis of Plasticity Induced Crack Closure by the Extended Body Force Method : Comparison of Various Analytical Results Based on Dugdale Model : Series A : Solid-Mechanics, Strength of Materials
• Singular Stress Field near a Corner of Jointed Dissimilar Materials under Antiplane Loads
• The Effect of Overstress on the Non-Propagating Crack Formed in a Specimen with a Small Hole : Series A : Solid-Mechanics, Strength of Materials
• Analysis of the Delaying Effects of Overloads on Fatigue Crack Propagation by the Body Force Method : Series A : Solid-Mechanics, Strength of Materials

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