Calculated estimations of the performance for TKX-50 based formulations

Abstract

A computational study of the detonation characteristics of several explosive formulationsbased on the energetic material TKX-50 has been carried out. Materials such as paraffin, HTPB, GAP, AMMO and BAMO were considered as fillers or binders. The influence of such fillers (with a volumetric content of up to 50 %) on the detonation characteristics of the composite energetic materials was investigated. The influence of porosity on the detonation characteristics of composite explosive formulations with a binder mass content of 5 and 10% was determined. An analysis of the (limited) experimental data for the detonation velocity of explosive formulations based on TKX-50 was undertaken. The experimentally determined detonation velocities of three explosive formulations with inert and energetic binders which have been previously published in the literature were considered and analysed. Good agreement was found between the calculated and experimental results for the detonation velocity. A computational study of the explosion impact of charges of TKX-50, as well as of explosive formulations based on it containing the above-mentioned binders, on copper plates with a thickness of 1 mm and on layers with a thickness of 50 mm was carried out. The mass content of binders in the explosive formulations was 5 %. The charges were 50 mm thick and consisted of compact or porous materials with a porosity of 2 %. The Explo5 and Ansys Autodyn programs were used to perform thermochemical, thermodynamic and gas-dynamic calculations.