An Experimental Study of Surface Crack Initiation and Propagation in Butt Welded Joints of SM58 Steel

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概要

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• Indirect measurement of the crack propagation rate through thickness using the relationship with the crack opening displacement is performed and the fatigue crack initiation and propagation behavior are discussed experimentally and analytically in connection with the plastic zone at the apex of an initial notch which is caused by early cyclic loading before crack initiation. A kind of master curve that shows the correlation between the crack initiation life and the plastic zone size caused by the initial notch is established.

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著者

• NIHEI Masatoshi

  National Research Institute for Metals

• SASAKI Etsuo

  National Research Institute for Metals

• KAMAKURA Masahide

  National Research Institute for Metals

関連論文

• Fatigue Life Prediction under Gaussian Type Random Loading
• Effect of Residual Tensile Stresses on Threshold Level for Fatigue Crack Propagation in Welded Joints of SM50B Steel
• An Experimental Study of Surface Crack Initiation and Propagation in Butt Welded Joints of SM58 Steel

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