THEORETICAL ASSESSMENT OF LIGHT STRUCTURAL DAMAGE DUE TO SHIP COLLISION WITH ICE.

A. Moshaiov, M. R. Steinhilber

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper, a new plasticity model is suggested. It is based on the assumption that the kinetic energy of the ice/ship collision is absorbed both by the ice and the structure. During the collision process, the ice/structure contact area varies due to ice crushing which dissipates some of the energy. At the same time, the plating may deform plastically, absorbing the remaining energy. Other forms of energies and ice failures are not accounted for, allowing a conservative estimate of the damage. A parametric study is performed revealing the significance of the energy absorbed by the ice in reducing the predicted permanent deflection of the plating. The new model is shown to be useful for ship structural design and optimization in addition to the evaluation of operating restrictions.

Original languageEnglish
Pages221-227
Number of pages7
StatePublished - 1988
Externally publishedYes

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