Naslov
Prediction of Cylinder Wall Velocity Profiles for ANFO Explosives Combining Thermochemical Calculation, Gurney Model, and Hydro‐Code

Autori
Sućeska, Muhamed ; Serene, Chan Hay Yee ; Qingling, Zhang ; Dobrilović, Mario ; Štimac, Barbara

Izvornik
Propellants, explosives, pyrotechnics (0721-3115) 46 (2021), 2; 253-261

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
thermochemical calculations ; ANFO ; cylinder test ; Gurney energy ; wall velocity

Sažetak
Theoretical prediction of performance indicators of explosives plays an important role in the development of new explosives and explosive formulations. Of particular interest is the possibility to estimate the velocity of metal liner driven by an explosive charge. We present a theoretical model for estimation of metal cylinder wall velocity profiles of non-ideal ANFO explosives. The model is based on thermochemical calculations using EXPLO5 code, expressing the Gurney energy in terms of JWL equation of state, and using hydro-code simulation. The Wood-Kirkwood detonation theory, incorporated in EXPLO5, is applied for calculation of detonation parameters of non- ideal ANFO explosives. It was found that this approach enables prediction of cylinder wall velocity for ANFO explosives, with the error at V/V0=7 expansion ratio not exceeding 100 m/s.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA