Shock Wave Reflection and Attenuation in the Combined Blast Inhibitors
A robust blast-inhibiting bin is the most often used device for damage blast effects suppression. In particular, a top open cylindrical bin significantly reduces a fragmentation effect resulted from a detonation of an explosive device placed inside the bin. However, reduction of blast wave overpressure and impulse by such cylindrical bins is not sufficient (Gelfand et al, Shock Waves 20:317–321, 2010) . A reasonable alternative to endless increase of height and thickness of robust blast-inhibiting bins is a development of destructible inhibitors having no solid elements in their structure and, therefore, excluding secondary fragmentation. So, the family of “Fountain” inhibitors (Vasil’ev et al, Izv Akad Nauk Energ 6:7–19, 2004) , (Silnikov and Mikhaylin, Acta Astronaut 97:30–37, 2014)  localizes and suppresses damaging blast effects due to multiphase working system. The present study is analyzing data obtained in testing of prototypes of new combined inhibitors. Their structure combines robust elements (bottoms, side surfaces) with elements responsible for blast loads reduction due to multiphase working system (top and low transverse embeddings) and fairings impeding wave propagation in undesirable directions.
The authors are grateful to Lieutenant-Colonel Yuri Frolenkov, Dr. Nikolay Vasilyev, Dr. Valery Dmitriev, Fedor Kompan, and other participants of the experiments.
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