Studies were conducted on the interaction between an underwater shock wave and a nearbysubmerged platformed cylinder. The aim was to predict, using FE modelling, the load arisingfrom the fluid-structure coupling. Three FE simulations were conducted. In the first study,experimentally determined surface pressure profiles were applied directly to the cylinder. Thisenabled the application of loads with the sharpest rise time. Comparisons to accelerationmeasurements, however, indicated that this simulation did not faithfully model the fluidstructureinteraction. In the second simulation, the cylinder was surrounded by water elementsand the experimentally determined load was applied to a spherical water cavity. This permittedmodelling the coupling between the water surface and the cylinder. In the third simulation theentire explosive sequence was modelled, from the detonation of the explosive to the response ofthe cylinder and platforms. This simulation included all aspects of the fluid-structure interaction.The predicted results from the later two studies were compared to experimental measurements.Particular attention was given to predicting the onset of cavitation and cavitation closure. Allstudies were limited to the incident wave and did not include the later effects from the bubble.
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