Stability of Composite Cylindrical Shells with Nonclassical Hygrothermal–Electro–Elastic Coupled Loads

An accurate nonlinear hygrothermal-electro-elastic (HTEE) buckling analysis of piezoelectric fiber-reinforced composite cylindrical shells subjected to the coupled loading effects axial compression and hydrostatic pressure was established by considering nonuniform prebuckling effect. Nonlinear governing equations were derived based on higher-order shear deformation theory Novozhilov’s shell theory. Accurate critical stresses pressures explicit modes for both axisymmetric nonaxisymmetric obtained Galerkin method. A comparison between new prediction existing results is presented excellent agreement reported. comprehensive parametric study geometric parameters, end conditions, distribution patterns, hygrothermal-electric multiphysical fields behavior HTEE also analyzed discussed.