Lightness of high pressure vessels is currently assured by composite materials. Construction of over-wrapped composite pressure vessels with inner metallic liner is for instance compatible with standards requirements of the hydrogen technology of energy storage. Therefore a typical layout manufactured by some industries consists of a cylindrical vessel with covering of carbon-epoxy laminates and metallic impermeable liner. To allow the filament winding of the composite fibres are used hoop and helical layers, respectively. A single nozzle is usually built. It requires that the vessel material is reinforced. This need imposes to have a variable thickness in the composite layer. In practice, fibres orientation angle and thickness are both variable. These aspects make hard a straight design operation by means of analytical approaches. In this paper a numerical design toolbox is developed. It includes a preliminary definition of the fibres network, found by the so-called netting analysis, the theory of composite laminates and the structural optimisation through the Finite Element Method. An industrial prototype was used as a test case to validate the proposed approach. Burst and auto-frettage pressures for the liner were predicted and a preliminary analysis of the fatigue life was performed.
Brusa, E., Nobile, M. (2009). Development of a numerical toolbox for the computer aided design of composite over-wrapped pressure vessels. Computer Modeling in Engineering & Sciences, 48(2), 155-190. https://doi.org/10.3970/cmes.2009.048.155
Vancouver Style
Brusa E, Nobile M. Development of a numerical toolbox for the computer aided design of composite over-wrapped pressure vessels. Comput Model Eng Sci. 2009;48(2):155-190 https://doi.org/10.3970/cmes.2009.048.155
IEEE Style
E. Brusa and M. Nobile, "Development of a Numerical Toolbox for the Computer Aided Design of Composite Over-Wrapped Pressure Vessels," Comput. Model. Eng. Sci., vol. 48, no. 2, pp. 155-190. 2009. https://doi.org/10.3970/cmes.2009.048.155
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