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Hoop stress in Jacket leg from rig mooring

Hoop stress in Jacket leg from rig mooring

Hoop stress in Jacket leg from rig mooring

I can see some shear, some bending stress and a resultant longitudinal stress, but a classic hoop stress is the result of internal pressure and I don't see anything to casuse that.  

We are more connected to everyone in the world than we've ever been before, except to the person sitting next to us.  Lisa Gansky

RE: Hoop stress in Jacket leg from rig mooring

(OP)
The pressure applied is cause by the tension pulling force in the rope  

RE: Hoop stress in Jacket leg from rig mooring

that would be a shear stress, not hoop stress.  Its simple shear that happens to be on a circular section with a hole in it.

see this, half way down you find a circular section.  For pipe section subtract the hole.
http://www.optics.arizona.edu/optomech/references/OPTI_222/OPTI_222_W10.pdf

Hoop stress for a thin circular section due to internal pressure is,

σh= P*D/2/t
P pressure
D outside diameter
t wall thickness   

We are more connected to everyone in the world than we've ever been before, except to the person sitting next to us.  Lisa Gansky

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