merged

Effects of Corrosion on the Structural Behavior of Submerged Jacket
Structure
Mohamad Rafie Bin Abdul Wahab
Supervisor: Dr. Mohd Asamudin A. Rahman
Bachelor of Applied Science (Maritime Technology)
School of Ocean Engineering
Universiti Malaysia Terengganu
Offshore jacket platforms have been extensively employed in the offshore oil and gas
exploitation in complicated ocean environments. In addition to the traffic loads and
environmental loads such as the wind, wave currents, and ice, offshore structures are
subjected to other types of loads, including severe storms, corrosion, fire, explosions,
etc., during their service life. Corrosion can reduce the thickness of structural
components which may lead towards fatigue crack initiation and buckling. These
failure mechanisms affect tower service life and may result in catastrophic structural
failure. In this study the structural behavior of the submerged structure with different
thickness of steel due to the corrosion effect was investigated. The specific model of
jacket structure is studied by using finite element software SACS. It was found that
the vibration of the structure is significantly affected by the reduced thickness of the
jacket member. This also would lead to a failure condition of the submerged jacket
structure which decreased the life span of the structure.
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