Subsea FRP pipeline performance in external pressure: Failure and external pressure-induced buckling
Peer reviewed, Journal article
Published version
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https://hdl.handle.net/11250/3012844Utgivelsesdato
2021Metadata
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Originalversjon
Pavlou, D. (2022) Subsea FRP pipeline performance in external pressure: Failure and external pressure-induced buckling. IOP Conference Series: Materials Science and Engineering, 1201, 012040 10.1088/1757-899X/1201/1/012040Sammendrag
The Subsea pipelines are subjected to high hoop stresses due to the hydrostatic pressure. When the internal pressure of the liquid has a higher value than the external hydrostatic one, there is a balance of the tensile and compressive stresses. However, during the offshore installation, the subsea pipelines are empty and the compression due to the hydrostatic pressure of the sea is predominant. High compressive stresses in FRP pipelines can cause failure or buckling. In the present work, an investigation of the external pressure-induced failure and buckling is carried out. Analytical formulae and results are provided and discussed.