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A reactive flow model for heavily aluminized cyclotrimethylene-trinitramine
Ist Teil von
Journal of applied physics, 2014-07, Vol.116 (2)
Ort / Verlag
Melville: American Institute of Physics
Erscheinungsjahr
2014
Quelle
AIP Journals
Beschreibungen/Notizen
An accurate and reliable prediction of reactive flow is a challenging task when characterizing an energetic material subjected to an external shock impact as the detonation transition time is on the order of a micro second. The present study aims at investigating the size effect behavior of a heavily aluminized cyclotrimethylene-trinitramine (RDX) which contains 35% of aluminum by using a detonation rate model that includes ignition and growth mechanisms for shock initiation and subsequent detonation. A series of unconfined rate stick tests and two-dimensional hydrodynamic simulations are conducted to construct the size effect curve which represents the relationship between detonation velocity and inverse radius of the charge. A pressure chamber test is conducted to further validate the reactive flow model for predicting the response of a heavily aluminized high explosive subjected to an external impact.