Publications (3)9.2 Total impact
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Article: Experimental study of hydraulic ram effects on a liquid storage tank: Analysis of overpressure and cavitation induced by a high-speed projectile.
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ABSTRACT: This work is part of a project for evaluating catastrophic tank failures caused by impacts with a high-speed solid body. Previous studies on shock overpressure and drag events have provided analytical predictions, but they are not sufficient to explain ejection of liquid from the tank. This study focuses on the hydrodynamic behavior of the liquid after collision to explain subsequent ejection of liquid. The study is characterized by use of high-velocity projectiles and analysis of projectile dynamics in terms of energy loss to tank contents. New tests were performed at two projectile velocities (963 and 1255 m s(-1)) and over a range of viscosities (from 1 to 23.66 mPa s) of the target liquid. Based on data obtained from a high-speed video recorder, a phenomenological description is proposed for the evolution of intense pressure waves and cavitation in the target liquids.Journal of hazardous materials 02/2010; 178(1-3):635-43. · 4.14 Impact Factor -
Article: Ballistic impact on an industrial tank: study and modeling of consequences.
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ABSTRACT: We have studied the sequence of events that occurs when a high-speed projectile (from 960 ms(-1) to 1480 ms(-1)) penetrates a vessel filled with toxic liquid. We find that prior to liquid ejection several well-defined phases occur, including the phenomenon known as the "hydraulic ram." Then a catastrophic tank failure leads to liquid ejection and fragmentation. This paper focuses on this phenomenon and explains how it can be related to the initial conditions of the target.Journal of hazardous materials 08/2009; 172(2-3):587-94. · 4.14 Impact Factor -
Article: Preliminary study of ballistic impact on an industrial tank: Projectile velocity decay
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ABSTRACT: Since the events of September 11, 2001, the possibility of an intentional act targeting the chemical process industry has become realistic. It is, therefore, a great concern to be able to predict the immediate consequences of such an act. This study is intended to improve our knowledge about the sequence of events that occurs when a high-speed bullet (>1000 m s−1) penetrates a vessel filled with toxic liquid. We find that, prior to liquid ejection, several well-defined phases occur, including the phenomenon known as the “hydraulic ram.” This paper focuses on projectile–target interactions and explains how the decay of projectile velocity is related to the initial conditions of the target.Journal of Loss Prevention in the Process Industries 21(6):627-634. · 0.91 Impact Factor
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Institutions
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2009–2010
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Ecole des Mines d'Alès
La Rochelle, Poitou-Charentes, France
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