This paper mainly focuses on the fatigue assessment of the structural details specific to the large LPG carriers with prismatic tanks. In a first step, are described the method of structural assessment of the hull and the independent tanks of LPG carriers. In a second step, are described more specifically the methodologies developed for the fatigue assessment of structural details specific to LPG carriers, and more particularly to the supports and keys. The paper also integrates the return of experience and mention practical solutions to enhance the fatigue of critical details.
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