A reactive flow model for heavily aluminized cyclotrimethylene-trinitramine

作者：Kim Bohoon; Park Jungsu; Lee Kyung Cheol; Yoh Jack J^*

来源：Journal of Applied Physics, 2014, 116(2): 023512.

DOI：10.1063/1.4887811

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.

• 出版日期2014-7-14