SOLVING STRESS EQUATIONS IN COMPOSITE CYLINDERS

Autores UPV
Año
CONGRESO SOLVING STRESS EQUATIONS IN COMPOSITE CYLINDERS

Abstract

Cylindrical flywheels under the action of centrifugal forces often are under stress distributions more complex than those of simple disks of short length. Strong edge effects can appear, and these effects vary significantly the distributions. These parts are unusually thick, often unidirectional in the circumferential direction except for a few thin transversal plies. Therefore, the out-of-plane stresses can reach relatively high values, sometimes limiting the speed limit and the energy storage capacity of the flywheel. In this paper, we analyze the stresses as a function of axial distance from the edge of the flywheel with the objective of finding an approximated analytical formulation that can predict the distribution of the out-of-plane components. The exact three-dimensional governing equations are integrated, neglecting just a few terms in the differential equations.