Nowadays, modelling and computer simulation are used in structure design to reduce the use of experimental investigations and laboratory tests required in a real layout structure. Using the potential-flow theory, the hydrodynamic pressure deduced from sea wave’s propagation has been computed based on the non linear theory of Stocks. The extension to the vertical breakwater (fixed bottom and floating breakwater) behaviour due to such excitations is indicated in this paper. Analytical expressions for functional performance variables of wave reflection by vertical breakwater, and stress analysis inside the breakwater have been obtained. These expressions have been numerically verified to demonstrate the capability of this analytical model.

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