Vessels not failing in hydro test

From: <Tomy>
Date: Mon Aug 29 2005 - 04:35:00 EDT

Hi ,
My question is,
1. Why vessels are not failing in hydro Test, where the pressure is 1.5 times the design pressure.Becauce t=PD/(2*Str)(Hoop stress).

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[Non-text portions of this message have been removed] Received on Mon Aug 29 04:35:00 2005