Notch Effects in Low Cycle Fatigue of Steels

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概要

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• Results of researches made for the purpose of investigating notch effects in low cycle fatigue of steels are summarized in this paper. In the first half part, low cycle fatigue behaviour of notched wide plates subjected to repeated tensile load are described, and the crack initiation life of a notched wide plate is discussed in the correlation with the crack initiation life of a hourglass shaped, small size specimen, which was strain cycled by duplicating strain histories at the tip of notch in the wide plate. The latter half part deals with the results of completely reversed, strain and load cycling tests of mild and 80kg/mm^2 steels. One of the conclusions obtained is that the fatigue strength reduction factor defined in strain cycling of smooth and grooved specimens is approximately equal to the plastic strain concentration factor of the notch.

• 社団法人日本船舶海洋工学会の論文

著者

• Iida Kunihiro

  Department Of Naval Architecture Faculty Of Engineering University Of Tokyo

関連論文

• 14. An Evaluation Technique for Fatigue Life of Multiple Surface Cracks
• Brittle Fracture Strength of Welded and Notched Wide Plate Subjected to Prior Cyclic Loading(Collected Papers Published by Staff of Ship Research Institute at societies and Institutions in 1967)
• Notch Effects in Low Cycle Fatigue of Steels
• Bending Fatigue Strength of Welded Steel Pipe with Uniform Mismatch
• Effect of Angular Distortion on Fatigue Strength of Transverse Butt-Welds in High Strength Steels
• An Analysis of Intermediate Cycle Fatigue Strength of Defective Welded Joints

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