Buckling and postbuckling behavior of eccentrically stiffened laminated cylinders Conference Paper uri icon

abstract

  • The buckling and postbuckling of stiffened laminated cylinders under uniform axial compression is investigated to determine the effects of shell lamination scheme and stiffeners on the reduced load-carrying capacity. The effect of geometric imperfection is also included. The analysis is based on the layerwise shell theory of Reddy for simply-supported, cross-ply laminated circular cylinders, and the `smeared stiffener' technique is used to account for the stiffener stiffness. The Rayleigh-Ritz method is used to reduce the continuum problem to a set of nonlinear algebraic equations, which are then solved using the Riks-Wempner iterative technique. Numerical results for stiffened and unstiffened, cross-ply laminated, simply-supported cylinders are to the number of nearly simultaneous buckling modes.

author list (cited authors)

  • Savoia, M., & Reddy, J. N.

publication date

  • January 1993