Abstract
The three-centre geometry design for the bottom end-plates of gas bottle cylinders is analysed using an approximate method involving Finite Element techniques. Shell elements are adopted to obtain the equivalent stress distribution along a generatrix of the bottle. The maximum stress profile in the bottom zone is plotted versus normalized geometrical parameters. The area which bounds acceptable solutions according to basic Standards Codes is outlined in the diagrams. Experimental measurements by means of electrical resistance strain gauges are compared with the numerical forecasts. The good correlation which was obtained confirms the validity of the proposed approach in dealing with industrial applications.
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