On-Bottom stability analysis ensures the underwater piping system remain on the seabed during the operation. It is one of the important aspect in designing an offshore pipeline system. Trenching, pipe burial, and increasing the thickness of concrete coating are a few methods to maintain on bottom stability. On-bottom stability can be divided in, vertical stability and dynamic lateral stability.
A pipeline, if subjected to compressive normal stresses most frequently fails by loss of stability. The buckling phenomena can be distinguished in three basic modes 1) local, 2) distortional, and 3) global buckling.
Global buckling is a buckling mode where the member deforms with no change in its cross-sectional shape.
Buckling Analysis of loads method or analytical methods for the calculation of the buckling load either do not exist, or are too limited in their applicability to provide a general tool. Finite Element Analysis is the numerical methods considered for buckling load calculation.
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| Software Capabilities | |
|---|---|
| ANSYS Mechanical | |
