二軸メカニカルラチェット変形挙動におよぼす最大応力と応力変動の影響

概要

論文の詳細を見る
The effects of variations in the maximum effective stress and stress ratio on biaxial strain accumulating behaviors are experimentally investigated using thin-walled tubular specimens of a carbon steel subjected to combined steady cyclic axial load and internal pressure. When the maximum effective stress was changed with number of cycles keeping constant in the stress ratio, the strain accumulating rate under biaxial stress condition was equal to the rate under uniaxial stressing. The biaxial strain accumulating rate was smaller compared with the rate in the uniaxial condition when the stress ratio was changed with number of cycles. A constitutive equation of biaxial mechanical ratcheting is proposed. The predictions by the present equation are agreed well with the experimental observations.
一般社団法人日本機械学会の論文
1984-06-25