Transient dynamic response of submerged sphere shell with an opening subjected to underwater explosion |
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Authors: | Wen-Hao Lai |
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Affiliation: | aDepartment of Marine Engineering, China College of Marine Technology and Commerce, Taipei, Taiwan, ROC |
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Abstract: | This investigation applies the time domain FEM/DAA coupling procedure to predict the transient dynamic response of submerged sphere shell with an opening subjected to underwater explosions. The elastic–plastic material behavior of the transient fluid–structure interaction relate to structural response equation also presented herein. This analysis also examines the transient responses of structures to different charge distances. The effects of standoff distance on pressure time history of the shell to underwater explosion (3001b TNT) are presented. Additionally, the transient dynamic responses to underwater explosion shockwaves in the sea and the air are compared. |
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Keywords: | Fluid– structure interaction Submerged sphere shell Underwater explosion |
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