Three-dimensional stability analysis of laminated anisotropic circular cylinders (Q675450)

Linear bifurcation stability of laminated anisotropic circular cylinders is investigated on the basis of three-dimensional elasticity using Biot's incremental deformation theory. A finite element code employing radial discretization is formulated for the calculations. A parameter study on a series of regular symmetric and antisymmetric cross-ply and angle-ply laminated composite cylinders under axial compression and torsion was conducted, where the data can be used to assess the accuracy and range of validity of stability predictions based on shell theories. An example of the axial compression of a thick-walled laminated composite cylinder is presented to illustrate an instability phenomenon where internal and surface deformations are present.