Similitude study for a laminated cylindrical tube under tensile, torsion, bending, internal and external pressure. Part I: governing equations

A general analytical model is developed for the stresses and displacements of an assembly of several coaxial laminated hollow circular cylinders made of orthotropic layers, and subjected to internal and external pressure, tensile, torsion and bending loads. Slip and friction conditions at the interfaces are not considered in lieu of perfect bonding. The model results are compared to the experimental tensile test of a composite tube. Displacements and stresses are evaluated for different angle-ply layers and radius-tothickness ratios. © 1999 Published by Elsevier Science Ltd. All rights reserved.