Open AccessSubsea FRP pipeline performance in external pressure: Failure and external pressure-induced buckling
Author(s) -
Dimitrios G. Pavlou
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1201/1/012040
Subject(s) - subsea , buckling , hydrostatic pressure , pipeline transport , internal pressure , structural engineering , submarine pipeline , hydrostatic equilibrium , compression (physics) , ultimate tensile strength , materials science , hydrostatic test , pipeline (software) , compressive strength , geotechnical engineering , geology , engineering , composite material , mechanics , mechanical engineering , physics , quantum mechanics
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.