Stability of orthotropic corrugated cylindrical shells

摘要: A technique for stability analysis of cylindrical shells with a corrugated midsurface is proposed. The wave crests are directed along the generatrix. relations shell theory include terms higher order smallness than those in Mushtari–Donnell–Vlasov theory. problem solved using variational equation. Lame parameter and curvature radius variable approximated by discrete Fourier transform. critical load buckling mode determined solving an infinite system equations coefficients expansion resolving functions into trigonometric series. solution accuracy increases owing to presence aggregate independent subsystems. Singularities modes corresponding minimum loads determined. basic, practically important conclusion that both isotropic orthotropic sinusoidal corrugation efficient only when their length, which depends on waveformation parameters geometric mechanical characteristics, small