The Dynamic Response of Naval Structures to the Application of a Loading Function to Predict Underwater Explosions
1985
Fallon, Dennis J.
This report is concerned with the structural response of hull structure integrity (or watertightness) and the integrity of equipment aboard a surface ship due to explosions. The fundamental characteristic of the shock experienced aboard naval vessels is the sudden increase in the velocity of structural members. Research is being performed to model the shock loading of underwater non-contact explosions on surface ships. This research has culminated in the development of a new loading function to approximate the shock loading. This function emphasizes the structural response while de-emphasizes the complex fluid-structure interaction, thereby considerably simplifying the analytical calculations of the dynamic response. The purpose of this report is to illustrate the application and simultaneously demonstrate the accuracy of this new loading function. Two test vehicles were chosen to compare analytical results to actual experimental results. The first is the structural analysis of the 'Paddlewheel' and the second is the structural analysis of the USS SPRUANCE (DD-963).
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