呂 金其
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振動荷重を受ける梁の進行性変形発生条件に関する研究
著者:
笹木 龍之介,一宮 正和,呂 金其,笠原 直人,（東京大）
発刊日:
公開日:
キーワードタグ:
Amplification factor Displacement-controlled stress Frequency ratio Input energy Load-controlled stress Ratchet deformation Vibration
笹木 龍之介,一宮 正和,呂 金其,笠原 直人,（東京大）
発刊日:
公開日:
キーワードタグ:
Amplification factor Displacement-controlled stress Frequency ratio Input energy Load-controlled stress Ratchet deformation Vibration
According to experimental observations, the failure modes of piping in nuclear power plants caused by large seismic motion are fatigue or ratchet deformation. However, the mechanism of ratchet deformation under the large seismic load is not so clear. In this study, authors conducted experiments and analysis of beams which simulates piping due to cyclic sinusoidal or more complicated waves (composite sinusoidal wave). As the results, authors confirmed that ratchet deformation occurrence conditions are strong...
英字タイトル:
Study on ratchet deformation occurrence conditions of beams due to vibration load
英字タイトル:
Study on ratchet deformation occurrence conditions of beams due to vibration load