Stress, buckling, and vibration analysis of shells of revolution

Abstract

This paper summarizes the major computer programs in existence for the analysis of shells of revolution by numerical integration and finite difference procedures. The report describes programs for (1) linear and nonlinear analysis of shells subjected to axisymmetric and asymmetric static loads, (2) buckling and vibration behavior including effects of axisymmetric nonlinear prestress, and (3) transient response. Extensions of these programs which are currently underway and some of the primary assets of both the numerical integration and finite difference procedures are discussed. In addition, a summary of the shell theory formulation, the numerical approximation, and the solution techniques of a set of programs denoted SALORS (Structural Analysis of Layered Orthotropic Ring-Stiffened Shells), developed at the NASA Langley Research Center, are described. Stress, vibration, and buckling results from the SALORS program are given for several shell configurations having a variety of structural complexities that illustrate the current capability of shell of revolution programs.