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INTERNAL RINGS (VS) VESSEL THICKNESS

INTERNAL RINGS (VS) VESSEL THICKNESS

INTERNAL RINGS (VS) VESSEL THICKNESS

(OP)
Hi all,
 Can any one tell me what happens to the thickness of the vessel if  internal rings are placed?

RE: INTERNAL RINGS (VS) VESSEL THICKNESS

kandula1, for internal pressure rings (internal or external) will have no effect, this can easily be seen from fact there is no length term in the equations. They may allow a thinner shell for external pressure, as this thickness is a function of length. For a vessel where distortion is a possiblilty independent of pressure retention, they could obviously be useful.

Regards,

Mike

RE: INTERNAL RINGS (VS) VESSEL THICKNESS

You could use shell bending theory to calculate that some of the load from internal pressure was transferred to the rings, allowing a thinner shell.  However, this isn't provided for in the normal code equations.  It might help to know more about the application.

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