Research output: Contribution to journal › Article › peer-review
Tomographic study of the structure of cast and pressed trotyl charges. / Satonkina, N. P.; Kuper, K. E.; Ershov, A. P. et al.
In: Results in Engineering, Vol. 16, 100621, 12.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Tomographic study of the structure of cast and pressed trotyl charges
AU - Satonkina, N. P.
AU - Kuper, K. E.
AU - Ershov, A. P.
AU - Pruuel, E. R.
AU - Yunoshev, A. S.
AU - Lukyanov, Ya L.
AU - Gusachenko, D. V.
AU - Khorungenko, A. S.
AU - Kuzminykh, A. A.
N1 - Funding Information: This research was funded by the Ministry of Science and Higher Education of the Russian Federation (project N 075-15-2020-781 ). Publisher Copyright: © 2022 The Author(s)
PY - 2022/12
Y1 - 2022/12
N2 - The sensitivity of condensed explosives depends strongly on the charge structure. Trotyl (TNT) is a typical example of such dependence. The pressed charges are more sensitive than the cast ones, which was confirmed in many studies including critical diameter tests and chemical spike width estimates. Our measurements of the electrical conductivity distributions in the dense TNT support the same conclusion. In this paper, results of tomographic study of the structure of pressed and cast trotyl are presented. The distribution functions of pores larger than 4 μm were obtained using synchrotron X-raying. In cast TNT, voids varying from units to hundred microns were observed, while the pressed charge was found to be substantially more uniform and less porous. The roles of possible mechanisms of hot spots generation are discussed.
AB - The sensitivity of condensed explosives depends strongly on the charge structure. Trotyl (TNT) is a typical example of such dependence. The pressed charges are more sensitive than the cast ones, which was confirmed in many studies including critical diameter tests and chemical spike width estimates. Our measurements of the electrical conductivity distributions in the dense TNT support the same conclusion. In this paper, results of tomographic study of the structure of pressed and cast trotyl are presented. The distribution functions of pores larger than 4 μm were obtained using synchrotron X-raying. In cast TNT, voids varying from units to hundred microns were observed, while the pressed charge was found to be substantially more uniform and less porous. The roles of possible mechanisms of hot spots generation are discussed.
KW - detonation
KW - electrical conductivity during detonation
KW - reaction zone kinetics
KW - sensitivity
KW - structure
KW - TNT
UR - http://www.scopus.com/inward/record.url?scp=85137620096&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/6605426d-18b8-3dab-8f10-d5682d446612/
U2 - 10.1016/j.rineng.2022.100621
DO - 10.1016/j.rineng.2022.100621
M3 - Article
AN - SCOPUS:85137620096
VL - 16
JO - Results in Engineering
JF - Results in Engineering
SN - 2590-1230
M1 - 100621
ER -
ID: 37522317