Volume 17, Issue 1, 2008

LETTER: STRESS ANALYSIS OF FILAMENT-WOUND COMPOSITE CYLINDERS UNDER COMBINED INTERNAL PRESSURE AND THERMAL LOADING

Hasan Çallioglu¹, Emin Ergun*¹ and Oktay Demirdag<sup>2

1</sup> Department of Mechanical Engineering, Pamukkale University, 20020, Kinikli
² Department of Civil Engineering, Pamukkale University, 20020, Kinikli, Denizli, Turkey

* Author to whom correspondence should be addressed, e-mail: eminergun@pau.edu.tr

Received 17 September 2007; accepted 13 February 2008

ABSTRACT
An analytical solution is performed using stress function approach for multi-layered filament-wound composite cylinders subjected to combined internal pressure and thermal loading. It is assumed that there is a liquid or gas of various temperatures in the cylinders. The effects of the wind angle variation through the radial section of the cylinders are also investigated. Thus, the layers are oriented symmetrically and antisymmetrically for (0°/90°), (30°/-30°), (45°/-45°) and (60°/-60°) orientations. A computer program is developed to conduct stress and deformation analyses of composite cylinder with different winding angle. All the integration constants are found from the radial stress and displacement in the normal direction of layers.

Keywords: Composite cylinders, thermal stress, internal pressure, stress analysis