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Effect of corrosion depth on upheaval buckling corroded pipelines
Muhammad Saifuddin Bin Yusri
Dr. Hairil Bin Mohd
Bachelor of Technology (Maritime)
School of Ocean Engineering
Universiti Malaysia Terengganu
Oil and gas industry plays important roles in our life. In order to transport the oil,
subsea pipelines were invented and engineer had designed a variety of designs for
the pipelines which contribute to some potential risk and engineering problems.
Upheaval buckling is one of the most common problems threatening the safe operation
of subsea pipelines, which is caused by the increasing of pressure and inner
temperature in the pipeline. Due to the curvature and high strain buckled pipelines,
fracture and wrinkling can occur. Additionally, local corrosion is vital in damaging the
pipelines itself. This paper presents a non-linear Finite Element study to investigate
the effect of corrosion depth on upheaval buckling corroded pipelines. The research
considered a buried thick wall 19mm pipeline. ABAQUS Finite Element package is used
for this research which a number of parameters would be investigated. Using this
analysis, behaviour or process can be modelled efficiently by using finite element
methods.
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