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

Autor:	Zhang Qingling, Chan Hay Yee Serene, Barbara Štimac, Mario Dobrilović, Muhamed Sućeska
Rok vydání:	2021
Předmět:	Materials science Explosive material Astrophysics::High Energy Astrophysical Phenomena General Chemical Engineering Code (cryptography) thermochemical calculations ANFO cylinder test Gurney energy wall velocity Cylinder General Chemistry Mechanics
Zdroj:	Propellants, Explosives, Pyrotechnics. 46:253-261
ISSN:	1521-4087 0721-3115
DOI:	10.1002/prep.202000215
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::939247da0e6f2c606c63f9d68b4b0301 https://doi.org/10.1002/prep.202000215 Zobrazit plný text záznamu Plný text