A local-global FE model for nonlinear analysis of column-supported shells of revolution

摘要

A local-global finite element model suitable for the analysis of column-supported shells of revolution is presented. The model combines, in a single analysis axisymmetric shell elements. general shell elements, and column elements. Axisymmetric or rotational shell elements which can accommodate geometric nonlinearities are employed in the axisymmetric portion of the hell. In this region, the nonaxisymmetric behavior in loading and deformation is accounted for by including appropriate Fourier harmonics.