Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/58492
Title: Modeling mitigation effects of watershield on shock waves
Authors: Shin, Y.S.
Lee, M.
Lam, K.Y. 
Yeo, K.S. 
Issue Date: 1998
Source: Shin, Y.S.,Lee, M.,Lam, K.Y.,Yeo, K.S. (1998). Modeling mitigation effects of watershield on shock waves. Shock and Vibration 5 (4) : 225-234. ScholarBank@NUS Repository.
Abstract: 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.
Source Title: Shock and Vibration
URI: http://scholarbank.nus.edu.sg/handle/10635/58492
ISSN: 10709622
Appears in Collections:Staff Publications

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