Paper number 669

A FLAT SHELL COMPOSITE ELEMENT INCLUDING PIEZOELECTRIC ACTUATORS

José Antônio Hernandes and Rafael Takeda Melim

Instituto Tecnológico de Aeronáutica, São José dos Campos, SP,12228-900, Brazil

Summary

A four-node, twenty-four degrees of freedom flat shell finite element for the analysis of thin composite laminate structures with surface bonded piezoelectric layers is presented. The formulation includes the effect of actuation strain on a plane stress functional containing drilling degrees of freedom. Inplane displacements are interpolated according to a modern membrane element and bending degrees of freedom are represented by the DKQ element.

Keywords

composite shell, shell finite element, smart structures.