Modeling Mitigation Effects of Watershield on Shock Waves
The object of this analysis is to investigate mitigation effects of watershield on air blast waves. To examine the water mitigation concept, features of the free-field detonation process are studied from a series of one-dimensional simulations using a multimaterial Eulerian finite element technique....
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
1998-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/1998/782032 |
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| _version_ | 1850230422664904704 |
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| author | Y.S. Shin M. Lee K.Y. Lam K.S. Yeo |
| author_facet | Y.S. Shin M. Lee K.Y. Lam K.S. Yeo |
| author_sort | Y.S. Shin |
| collection | DOAJ |
| description | The object of this analysis is to investigate mitigation effects of watershield on air blast waves. To examine the water mitigation concept, features of the free-field detonation process are studied from a series of one-dimensional simulations using a multimaterial Eulerian finite element technique. Five different shock Hugoniots for water are compared, and the most accurate data are suggested. To verify the numerical procedure, results are compared with available experimental data for UNDEX problem and analytical predictions for air shocks. For the case of contact watershield, the magnitude of peak pressure generally decreases and the shock arrival time increases with increasing thickness of watershield. The total pressure impulse is reduced significantly at near field. Non-contact watershield was also examined, and was found to provide a better design criterion based on the further decay of peak pressure. |
| format | Article |
| id | doaj-art-29585c9760ab42fe9965d072ddfc32b6 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1998-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-29585c9760ab42fe9965d072ddfc32b62025-08-20T02:03:53ZengWileyShock and Vibration1070-96221875-92031998-01-015422523410.1155/1998/782032Modeling Mitigation Effects of Watershield on Shock WavesY.S. Shin0M. Lee1K.Y. Lam2K.S. Yeo3Department of Mechanical Engineering, Naval Postgraduate School, Monterey, CA 93943, USASchool of Mechanical & Aerospace Engineering, Sejong University, 98 Kunja-Dong, Kwangjin-Gu, Seoul, 143-747, KoreaMechanical & Production Engineering Department, National University of Singapore, 10 Kent Ridge Crescent, 0511, SingaporeMechanical & Production Engineering Department, National University of Singapore, 10 Kent Ridge Crescent, 0511, SingaporeThe object of this analysis is to investigate mitigation effects of watershield on air blast waves. To examine the water mitigation concept, features of the free-field detonation process are studied from a series of one-dimensional simulations using a multimaterial Eulerian finite element technique. Five different shock Hugoniots for water are compared, and the most accurate data are suggested. To verify the numerical procedure, results are compared with available experimental data for UNDEX problem and analytical predictions for air shocks. For the case of contact watershield, the magnitude of peak pressure generally decreases and the shock arrival time increases with increasing thickness of watershield. The total pressure impulse is reduced significantly at near field. Non-contact watershield was also examined, and was found to provide a better design criterion based on the further decay of peak pressure.http://dx.doi.org/10.1155/1998/782032 |
| spellingShingle | Y.S. Shin M. Lee K.Y. Lam K.S. Yeo Modeling Mitigation Effects of Watershield on Shock Waves Shock and Vibration |
| title | Modeling Mitigation Effects of Watershield on Shock Waves |
| title_full | Modeling Mitigation Effects of Watershield on Shock Waves |
| title_fullStr | Modeling Mitigation Effects of Watershield on Shock Waves |
| title_full_unstemmed | Modeling Mitigation Effects of Watershield on Shock Waves |
| title_short | Modeling Mitigation Effects of Watershield on Shock Waves |
| title_sort | modeling mitigation effects of watershield on shock waves |
| url | http://dx.doi.org/10.1155/1998/782032 |
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