Wave-Form Effect on Fatigue Strength and Its Rheological Analysis

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概要

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• The stress wave under service is generally non-sinusoidal. The fatigue test by non-sinusoidal loading was made and compared with the sinusoidal stress wave fatigue test. Wave forms selected are 5 c/sec sinusoidal, square and triangular and 11.5 c/sec sinusoidal. The test results show that, for test specimens of 0.3% carbon steel, especially for unnotched specimens, the fatigue strength differs significantly with different wave patterns, for the reason mainly of different amounts of repeating plastic strain. Then, an attempt was made to obtain an analytical expression of wave-form effect in terms of the relationship between stress and plastic strain during the fatigue test using a rheological model.

• 一般社団法人日本機械学会の論文

著者

• Koibuchi Koji

  Mechanical Engineering Research Laboratory Hitachi Ltd.

• YAMANE Masami

  School of Science and Engineering, Waseda University

• Yamane Masami

  School Of Science And Engineering Waseda University

関連論文

• Wave-Form Effect on Fatigue Strength and Its Rheological Analysis
• Study of Crane Structure Design Considering Fatigue under Service Load
• Stress-Strain Curves under Variable Stresses

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