11 research outputs found
Bending and vibration of functionally graded material sandwich plates using an accurate theory
In this paper, the bending and the free flexural vibration behaviour of
sandwich functionally graded material (FGM) plates are investigated using
QUAD-8 shear flexible element developed based on higher order structural
theory. This theory accounts for the realistic variation of the displacements
through the thickness. The governing equations obtained here are solved for
static analysis considering two types of sandwich FGM plates, viz., homogeneous
face sheets with FGM core and FGM face sheets with homogeneous hard core. The
in-plane and rotary inertia terms are considered for vibration studies. The
accuracy of the present formulation is tested considering the problems for
which three-dimensional elasticity solutions are available. A detailed
numerical study is carried out based on various higher-order models to examine
the influence of the gradient index and the plate aspect ratio on the
global/local response of different sandwich FGM plates.Comment: 28 pages, 6 figures, 9 table