Ritz R-Function Method for the Analysis of Variable-Stiffness Plates

This paper presents a novel approach for analyzing the free vibration response of variable-stiffness panels. A method is proposed herein, which relies upon combination R-functions and Ritz method. powerful peculiar aspect this consists in possibility handling any complex geometry with reduced modeling effort few degrees freedom to be handled. The so-obtained formulation particular interest early design studies plate- shell-like structures, especially when topological features are concern. Specifically, studying configurations arbitrary shape crucial importance exploiting potential offered by composites nonstraight fibers. Exemplary results presented structures different geometries shapes. comparison against from literature finite element calculations reveals as valuable mean assisting innovative configurations.