The Yield Condition of Nodular Cast Iron Subjected to Triaxial Stresses

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概要

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• The yield stresses of ferritic nodular cast iron under triaxial stress states with various values of Lode's parameter over a wide range of hydrostatic stresses are obtained by operating testing apparatus under hydrostatic pressure. It is found that the yield stress is influenced by Lode's parameter and hydrostatic stress. The initial yield surface in principal stress space is derived from a model in which the stress concentration in matrix around spherical graphite nodules dispersed in the material is considered. Comparison of the experimental results with the theoretical results suggests that the initial yield surface of the material is unsymmetric with respect to the hydrostatic stress axis, swells in the negative side of the axis, and is a closed surface.

• 一般社団法人日本機械学会の論文

著者

• Ikeda Kiyohiko

  College Of Engineering University Of Osaka Prefecture

• Igaki Hisashi

  College Of Engineering University Of Osaka Prefecture

• Ozawa Toshio

  Matsushita Electric Industrial Co. Ltd.

関連論文

• Mixed-Mode Fracture Criterion in Soda-Lime Glass
• The Yield Condition of Nodular Cast Iron Subjected to Triaxial Stresses
• Dynamic Behavior of a Circular Cylinder Under Impulsive Loads (Stress Concentration Associated with Stress Waves) : Series A : Solid-Mechanics, Strength of Materials

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