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Shock Analysis of Water Backed Perforated Plate Subjected to Underwater Explosion
Abstract Perforated plates are essential structural components of sonar acoustic domes of the submarines and underwater platforms. The sonar acoustic domes are considered as ‘water backed condition’ for structural analysis. It is of utmost importance to study the structural response of sonar acoustic domes subjected to noncontact underwater explosion since it has wide scope in defence application. It is intended to investigate the free field pressure due to the underwater explosion and structural response of perforated plate using ANSYS LS-DYNA software for plastic explosive kirkee (PEK), Tri Nitro Toluene (TNT) and Composition 4 explosives. The free field pressure from TNT explosion is validated with the Cole’s expression available for this explosive. The time history plots for free field pressure, displacement and principal stress are plotted for all the three explosives. The free field pressure is validated with Cole’s formula and found 18 % variation for TNT and 14 % for PEK explosive.
Shock Analysis of Water Backed Perforated Plate Subjected to Underwater Explosion
Abstract Perforated plates are essential structural components of sonar acoustic domes of the submarines and underwater platforms. The sonar acoustic domes are considered as ‘water backed condition’ for structural analysis. It is of utmost importance to study the structural response of sonar acoustic domes subjected to noncontact underwater explosion since it has wide scope in defence application. It is intended to investigate the free field pressure due to the underwater explosion and structural response of perforated plate using ANSYS LS-DYNA software for plastic explosive kirkee (PEK), Tri Nitro Toluene (TNT) and Composition 4 explosives. The free field pressure from TNT explosion is validated with the Cole’s expression available for this explosive. The time history plots for free field pressure, displacement and principal stress are plotted for all the three explosives. The free field pressure is validated with Cole’s formula and found 18 % variation for TNT and 14 % for PEK explosive.
Shock Analysis of Water Backed Perforated Plate Subjected to Underwater Explosion
Nandagopan, Obla Ramanandam (author) / Ranjithkumar, Santharam (author) / Nandakumar, Chirayil Gopalakrishnannair (author)
Journal of The Institution of Engineers (India): Series C ; 97 ; 291-298
2016-03-09
8 pages
Article (Journal)
Electronic Resource
English
Shock Analysis of Water Backed Perforated Plate Subjected to Underwater Explosion
| Online Contents | 2016
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