Nonlinear Stability Analysis of Shells Using The Quasi—Conforming Element Method

In this paper,the elastic stability analysis of the cylinclrial panel is presented Using nonlinear finite element of the Quasi-conforming model, and a geometrical nonlinear shell stability analysis method is suggested Numerical examples indicated that the needed number of the elements of the Quasi-Conforming model is only a quarter of that of the displacement model for reaching the same computiug accuracy.