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Abstract

The viscoelastic buckling and postbuckling behaviors of fiber-reinforced plastic (FRP) circular cylindrical shells, operating in the hygrothermal environment, subjected to uniform external pressure are investigated in this study. The FRP is assumed to be a hy grothermorheologically simple material (HTSM). The analysis is conducted within the framework of the quasielastic approach. The finite element method is employed to examine both buckling and postbuckling behaviors for shells having arbitrary layups. The arc-length algorithm is incorporated into the finite element formulations to trace the postlimit equilibrium path. The structural responses of Glass/Epoxy shells are reported.

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