A filament wound E-glass/epoxy pressure vessel has a diameter of 140 cm, a wall thickness of 6.5 mm and a helical wrap angle of 54.74°. Using a netting analysis and a safety factor of 2, estimate the upper allowable internal pressure in the vessel. Compare this to the upper allowable internal pressure in a vessel of identical dimensions fabricated from 6061 aluminium alloy, whose yield stress is 276 MPa. Use the Maximum Shear Stress criterion for this and comment on your results.

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Calculate the hop stress induces in the pressure vessel Tensile strength of Eg... View the full answer