Abstract
The out-of-plane deformation of the roof-deck caused by the radial second mode of sloshing results in radial contraction of the deck, thereby inducing an elliptical deformation of the pontoon. In this paper, the stress caused by this elliptical deformation is analyzed. Numerical results show that the bending stresses are magnified locally near the joint with the deck. A method of reducing the circumferential membrane stress in outer portions of the pontoon is discussed.
