Urea-Hydrogen Peroxide (UHP): Comparative study on the experimental detonation pressure of a non-ideal explosive

被引：0

作者：

Halleux, Francis ^{[1
,2
]}

Pons, Jean-Francois ^{[1
]}

Wilson, Ian ^{[1
]}

Stennett, Chris ^{[1
]}

Van Riet, Romuald ^{[2
]}

Lefebvre, Michel ^{[2
]}

机构：

[1] Cranfield Univ, Def Acad United Kingdom, Ctr Def Chem, Shrivenham SN6 8LA, England

[2] Royal Mil Acad, Dept Chem, Lab Energet Mat, Brussels, Belgium

来源：

PROPELLANTS EXPLOSIVES PYROTECHNICS | 2023年 / 48卷 / 10期

关键词：

detonation pressure; non ideal explosive; passive optical probes; photonic Doppler velocimetry; urea hydrogen peroxide;

D O I：

10.1002/prep.202300116

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Carbamide Peroxide, an adduct of Urea and Hydrogen Peroxide (UHP) industrially used as a solid source of hydrogen peroxide, exhibits the behaviour of a tertiary explosive but a detailed performance characterisation is still lacking in the literature. In this work, we calculated a 20 % experimental TNT equivalence for brisance, i. e. the shattering effect from the shock wave transmitted from the detonating high explosive into adjacent materials, by experimental indirect measurement of UHP detonation pressure. We determined a 3.5 GPa detonation pressure for 5 kg unconfined UHP charges (0.87 g/cm(3), 120 mm charge diameter) by measuring the attenuated shock wave velocity (ASV) in adjacent inert materials using passive optical probes. Particle velocity measurements at the interface of a PMMA impedance window carried out with Photonic Doppler Velocimetry on scaled-down charges of 90 g UHP under heavy confinement (0.85 g/cm(3), 30 mm charge diameter, 4 mm thick steel) are consistent with ASV results in the PMMA acceptors but further investigations are required to determine the detonation pressure, using a small-scale experimental setup. The ASV method has proven reliable to assess the brisance of a non-ideal explosive for risk assessment purposes.

引用

页数：11