The Effect Of Initial Axisymmetric Shape Imperfections Of The Buckling Behaviour Of Circular Cylindrical Shells Under Axial Compression

Buckling of Fiber-reinforced Circular Cylinders Under Axial Compression

An analytical solution for the buckling load was obtained by using cylindrical shells. An analytical solution for the buckling load was obtained by using Koiter's theory for axisymmetric and asymmetric imperfections. For axisymmetric imperfections, numerical evaluation were carried out for the case of three-ply composite shells of glass, boron and graphite-epoxy construc-tion. It was found that drastic buckling load reductions occurred comparable to isotropic shells for small values of imperfection amplitudes. For each cylindrical shell, test model fabricated from three ply preimpregnated glass-epoxy, an equivalent imperfection amplitude was computed by using the root mean square imperfection measurements obtained from several generators. Fairly good agreement was found between the analytically predicted and experimental buckling loads.

The Effect of Initial Axisymmetric Shape Imperfections of the Buckling Behaviour of Circular Cylindrical Shells Under Axial Compression

UTIAS Report