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|Designing Submarine pipeline for propogation buckling|
Posted by: Sanjeev9116 ® |
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I am presently working on submarine pipeline using DNV offshore standard DNV-OS-F101 for the submarine pipeline system.
Stsndard gives criteria to design the line for the internal pressure, collapse due to external pressure and the propogation buckling.
Thickness requirement for the buckle arrestor is decided based on buckle propogation criteria however I am unable to find out the criteria to find out the span at which the buckle arrestors are to be provided.
External pressure design is affected by the length of the component into the consideration and ASME gives consideration to the same to select the thickness/ stiffener calculation and I believe that the same principal shold be applicable in case of DNV code also.
Can somebody help me in finding out the criteria for deciding the span between the buckle arrestors.
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