Refined theory for non-linear buckling of heated composite shallow spherical shells

摘要: Abstract The present study deals with static buckling and postbuckling behavior of clamped shallow laminated spherical shell polar-orthotropic layers subjected to a conservative uniform external pressure temperature load. physical properties the material are assumed be independent. variational principle minimum potential energy system is used obtain governing equations in terms displacements. Five Mindlin-type displacement variables utilized take into account thickness shear. A tenth order non-linear differential obtained its numerical solution shown for case axisymmetric deformation constant field. method solution, including finite difference discretization modified relaxation procedure, proposed. Some specific effects inherent composite shells found discussed.