Hydraulic Ram Effects in Liquid Propellants
Technical rept. 1 Oct 1977-21 Feb 1988
ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ ARMAMENT ENGINEERING DIRECTORATE
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Preliminary vulnerability tests with liquid propellant stored in one gallon plastic and steel containers resulted in very hydraulic-ram pressures when containers were impacted by shaped charges. These pressure and attending mechanical shock and vibration exceeded the limitation of the Kistler pressure transducers used in these pressure measurements. Since liquid propellants will be stored in larger volumes in armored vehicles, it is imperative to have a means of predicting the high pressures and impulse. The measurements are critical to the design of liquid propellant storage containers that will properly vent the high pressures and ensure maximum safety to immediate personnel. Small-scale tests were conducted that will be used to predict the hydraulic-ram effects in larger, stored liquid propellant quantities. This paper will address the development of a model that can predict the effect produced by liquid propellants when a high energy source produces hydraulic-ram in a heavily confined container. Keywords Hydraulic ram, Dynamic shock loading, Vulnerability tests, Shaped charges, Pressure transducer, Liquid propellant.
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