A Finite Element Presentation of Optimum Design for Filament-Winding Composite Cylindrical Pressure Vessels

Abstract

Modern composites, using continuous fibres in a resin matrix, are important candidate materials in the engineering of energy-efficient structures. In many applications, fibre/matrix materials are lighter, stronger and possibly cost effect when compared with traditional materials like metals. Many high-strength composite products are fabricated using the filament winding process. In this process, bands of resin-impregnated fibre are wound over a cylindrical mandrel using a computer controlled fibre placement machine. Filament-wound tubular structures, more specificly pressure vessels, offer significant weight saving over conventional all metallic ones for containment of high-pressure gases and liquids. The subject of this study is to provide a simple analytical solution along with a numerical finite element method for designing of moderately thick filament over-wrapped metallic cylindrical pressure vessels.