The flat steel ribbon-wound vessel is a relatively new type of wound pressure vessel. This type of vessel consists of a thin-walled inner core and helically wound flat steel ribbons. The outstanding safety in service of this type of vessel is due, in part, to the large circumferential and axial prestresses introduced during the ribbon-winding process. This paper presents a model for determination of prestresses in such a vessel. The model considers the fabrication procedures producing the prestress in the vessel. Experimental results from tests using full-scale vessels are presented. Agreement between the theoretical model and the experimental results is excellent.

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