GENERAL REPORT SHELL STRUCTURES

摘要

The buckling behaviour of shell structures is widely controlled by coupled instability phenomena. Three practically important metal shell cases with coupled (or interactive, respectively) instability behaviour are reviewed herein: Unstiffened cylindrical steel shells under combined stressing by axial, circumferential and shearing membrane forces, in which coupling of single load instability modes may occur; ring-stiffened cylindrical steel shells under external pressure and stringer-stiffened steel shells under axial compression, in which coupling of local and global instability modes may occur.