Abstract
AbstractThe present investigation deals with the nonlinear stability behavior of cross-ply laminated composite circular cylindrical shells subjected to partial and complete edge loading along with uniform external pressure. The shell is modeled using Donnell’s shell theory including the first-order shear deformation theory (FSDT). The analysis uses the simply supported boundary condition (at x=0, L Nxx=N¯xx, w=Mxx=v=ϕθ=0). The equations governing the nonlinear stability behavior of cylindrical shells are derived in terms of displacements (u-v-w) and rotations (ϕx, ϕθ). The applied partial edge loading is expressed in terms of Fourier series, and stress distributions within the cylindrical shell are determined by prebuckling analysis. The study uses multiterm Galerkin’s method along with the Newton-Raphson method to solve the governing partial differential equations of the shell nonlinear stability. With the help of numerical investigations, the authors present the number of modes required for the postbuck...
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