摘要
本文根据ECCS[1]、D_nV[3]、APIBULL[4]及ASME[7]四种设计规范在轴向压缩力作用下,焊接圆柱壳屈曲破坏的强度预报值和实验值分析比较所得到的模型不确定性参数,通过改进的第二水平法(ADVANCEDLEVEL—Ⅱ)的可靠性分析方法,求得了在设计情况下焊接圆柱壳屈曲强度中的敏感因子ai及可靠性指数β值。
Experimental results of buckling of more than 130 welded steel cylindrical shells under axial compression have been collected and been analysed.The model uncertainty inherent of buckling strength predicted in various codes are found. The sensitivity coefficients and reliability index of buckling of welded cylindrical shells are calculated using relevent uncertainty varibles in accordance with advanced level 2 reliability analysis procedure.
出处
《上海力学》
CSCD
1992年第2期56-64,共9页
Chinese Quarterly Mechanics
