Influence of Content and Dispersion of Octogene and Oxidizer on the Mechanical Properties of Cast Aluminized PBX
Gordana Antiæ,
Vesna Rodiæ,
Zoran Borkoviæ
The effect of the content and dispersion of the explosive and oxidation components on the mechanical behavior of polyurethane binder based composite explosives (PBX) was investigated. Experiments were planned by using local simplex planning of the third order, under which 13 compounds were cast, with planned variation of three factors. Thirteen octogene and five ammonium perchlorate granulations, with different amount of coarse and fine fraction, were used for PBX manufacture. PBX mechanical characteristics under uniaxial tension, at 20ºC, 50ºC and -40ºC, were determined. Mathematical models, which adequately describe dependences of PBX mechanical characteristics on the level of variations of analysed factors, were obtained.
Key words: explosives, cast explosives, octogene, polyurethane binder, ammonium perchlorate, mechanical characteristics.