Tomographic study of the structure of cast and pressed trotyl charges
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....
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123022002912 |
| _version_ | 1828419144998977536 |
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| author | N.P. Satonkina K.E. Kuper A.P. Ershov E.R. Pruuel A.S. Yunoshev Ya.L. Lukyanov D.V. Gusachenko A.S. Khorungenko A.A. Kuzminykh |
| author_facet | N.P. Satonkina K.E. Kuper A.P. Ershov E.R. Pruuel A.S. Yunoshev Ya.L. Lukyanov D.V. Gusachenko A.S. Khorungenko A.A. Kuzminykh |
| author_sort | N.P. Satonkina |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-10T14:48:47Z |
| format | Article |
| id | doaj.art-02a5ed2941bb4266855cfad55a4230a5 |
| institution | Directory Open Access Journal |
| issn | 2590-1230 |
| language | English |
| last_indexed | 2024-12-10T14:48:47Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj.art-02a5ed2941bb4266855cfad55a4230a52022-12-22T01:44:30ZengElsevierResults in Engineering2590-12302022-12-0116100621Tomographic study of the structure of cast and pressed trotyl chargesN.P. Satonkina0K.E. Kuper1A.P. Ershov2E.R. Pruuel3A.S. Yunoshev4Ya.L. Lukyanov5D.V. Gusachenko6A.S. Khorungenko7A.A. Kuzminykh8Lavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, Russia; Novosibirsk State University, 630090, Novosibirsk, Russia; Corresponding author. Lavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, Russia.Budker Institute of Nuclear Physics, SB RAS, 630090, Novosibirsk, Russia; Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, RussiaLavrentyev Institute of Hydrodynamics, SB RAS, 630090, Novosibirsk, RussiaNovosibirsk State University, 630090, Novosibirsk, RussiaNovosibirsk State University, 630090, Novosibirsk, RussiaThe 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.http://www.sciencedirect.com/science/article/pii/S2590123022002912TNTstructuredetonationreaction zone kineticselectrical conductivity during detonationsensitivity |
| spellingShingle | N.P. Satonkina K.E. Kuper A.P. Ershov E.R. Pruuel A.S. Yunoshev Ya.L. Lukyanov D.V. Gusachenko A.S. Khorungenko A.A. Kuzminykh Tomographic study of the structure of cast and pressed trotyl charges Results in Engineering TNT structure detonation reaction zone kinetics electrical conductivity during detonation sensitivity |
| title | Tomographic study of the structure of cast and pressed trotyl charges |
| title_full | Tomographic study of the structure of cast and pressed trotyl charges |
| title_fullStr | Tomographic study of the structure of cast and pressed trotyl charges |
| title_full_unstemmed | Tomographic study of the structure of cast and pressed trotyl charges |
| title_short | Tomographic study of the structure of cast and pressed trotyl charges |
| title_sort | tomographic study of the structure of cast and pressed trotyl charges |
| topic | TNT structure detonation reaction zone kinetics electrical conductivity during detonation sensitivity |
| url | http://www.sciencedirect.com/science/article/pii/S2590123022002912 |
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