A refined non-linear non-conforming triangular plate/shell element

A re ned non-conforming triangular plate=shell element for geometric non-linear analysis of plates=shells using the total Lagrangian=updated Lagrangian approach is constructed in this paper based on the re ned non-conforming element method for geometric non-linear analysis. The Allman’s triangular plane element with vertex degrees of freedom and the re ned triangular plate-bending element RT9 are used to construct the present element. Numerical examples demonstrate that the accuracy of the new element is quite high in the geometric non-linear analysis of plates=shells