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Experimental and Theoretical Investigation of a Model Reactive Armour with Nitrocellulose and Cellulose Composites

Trzciński W. A., Cudziło S., Dyjak S., Szymańczyk L.

Central European Journal of Energetic Materials

2013

Vol. 10, no. 2

191--207

Monolithic nitrocellulose and cellulose composites (NC-C) were obtained by cross-linking a mixture of nitrocellulose with cellulose using hexamethylene diisocyanate (HDI). They were incorporated into a model reactive armour. An X-ray technique was used to examine the infuence of the cellulose content on the accelerating ability of the gaseous reaction products of the composites. The modifed Gurney model was used to simulate the process of driving steel plates in the reactive armour after jet impact. Formulae for the determination of the time-space characteristics of the plates’ movement were derived. The results of the X-ray recording of the plates driven by the explosion products of monolithic nitrocellulose and cellulose composites (NC-C) were used for the verifcation of the model.

Otrzymywanie i badanie właściwości kompozytów nitrocelulozowo-celulozowych : część teoretyczna

Trzciński W. A., Cudziło S., Dyjak S.

Biuletyn Wojskowej Akademii Technicznej

2012

Vol. 61, nr 3

211-222

Zastosowano zmodyfikowany model Gurneya do symulacji procesu napędzania płytek stalowych w modelowym pancerzu reaktywnym po uderzeniu strumienia kumulacyjnego. Wyprowadzono wzory umożliwiające określenie charakterystyk czasowo-przestrzennych ruchu płytek. Model zweryfikowano, wykorzystując wyniki rentgenograficznej rejestracji napędzania płytek produktami wybuchu monolitycznych kompozycji nitrocelulozowo-celulozowych (NC-C).

The modified Gurney model was used to simulate the process of driving steel plates in a model reactive armour after jet impact. Formulas for determining the time-space characteristics of movement of the plates were derived. The model was verified by using the results of the X-ray recording of plates driven by explosion products of monolithic nitrocellulose and cellulose composites (NC-C).

Influence of Geometry and Material Properties on an Explosive's Gurney Velocity and Energy

Backofen J. E.

Central European Journal of Energetic Materials

2006

Vol. 3, nr 4

23-40

Experimental data from many scientific publications reveal that the copper cylinder test used internationally to measure an explosive's Gurney Velocity and Gurney Energy falls within a unique combination of geometry and material properties - factors affecting an explosive's measured performance. These data also support the need to use two separate propulsion events to model detonation-driven propulsion: a brisant first stage and a gas-dynamic second stage.