Finite element large deflection static analysis of shallow and deep stiffened shells

摘要

Geometric nonlinear static analysis of shallow and deep stiffened shells has been conducted on the basis of a combination of Allman's plane stress triangle and Discrete Kirchhoff triangle (DKT) plate bending element. The compatibility condition at the shell beam junction is ensured as the same displacement function used for both the shell and the stiffener element. The formulation of the stiffener is done in such a manner that it can be placed anywhere within the shell element.