Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/145129
Full metadata record
DC FieldValueLanguage
dc.contributor.authorXu, Wen-longen_US
dc.contributor.authorWang, Chengen_US
dc.contributor.authorYuan, Jian-mingen_US
dc.contributor.authorGoh, Wei-liangen_US
dc.contributor.authorLi, Taoen_US
dc.date.accessioned2020-12-14T01:07:31Z-
dc.date.available2020-12-14T01:07:31Z-
dc.date.issued2019-
dc.identifier.citationXu, W., Wang, C., Yuan, J., Goh, W., & Li, T. (2019). Investigation on energy output structure of explosives near-ground explosion. Defence Technology, 16(2), 290-298. doi:10.1016/j.dt.2019.08.004en_US
dc.identifier.issn2214-9147en_US
dc.identifier.urihttps://hdl.handle.net/10356/145129-
dc.description.abstractIn order to give the energy output structure of typical explosives near-ground explosion in real ground conditions, the free-field shockwave, ground reflection shockwave and Mach wave overpressure time history of composition B explosive, RDX explosive and aluminized explosive were measured by air pressure sensors and ground pressure sensors. The shape of the free-field shock wave, ground reflection shock wave, and Mach wave and explosion flame were captured by high-speed camera. The experimental results show that, at the same horizontal distance from the initiation point, the peak overpressure of explosive shock wave of composition B explosive, both in the air and on the ground, is less than that of RDX and aluminized explosives. At a distance of 3.0 m from the initiation point, the peak overpressure of aluminized explosives is slightly less than that of RDX explosives. Owing to the exothermic effect of aluminum powder, the pressure drop of aluminized explosives is slower than that of RDX explosives. At 5.0 m from the initiation point, the peak overpressure of aluminized explosives is larger than that of RDX explosives. At the same position from the initiation point, among the three kinds of explosives, the impulse of aluminized explosives is the maximum and the impulse of composition B explosives is the minimum. With the increase of the horizontal distance from the initiation point, the height of Mach triple-points (Mach steam) of the three explosives increases gradually. At the same horizontal distance from the initiation point, there is poorly difference in the height of Mach triple-points between aluminized explosive and RDX explosive, and the height of Mach triple-points of composition B explosive is much smaller than that of other two explosives. The maximum diameter and duration of the fireball formed by aluminized explosives are the largest, followed by composition B explosive, and the maximum diameter and duration of the fireball formed by RDX explosive are the smallest.en_US
dc.language.isoenen_US
dc.relation.ispartofDefence Technologyen_US
dc.rights© 2020 China Ordnance Society. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.subjectScience::Physicsen_US
dc.titleInvestigation on energy output structure of explosives near-ground explosionen_US
dc.typeJournal Articleen
dc.contributor.researchTemasek Laboratories @ NTUen_US
dc.identifier.doi10.1016/j.dt.2019.08.004-
dc.description.versionPublished versionen_US
dc.identifier.issue2en_US
dc.identifier.volume16en_US
dc.identifier.spage290en_US
dc.identifier.epage298en_US
dc.subject.keywordsNear-ground Blasten_US
dc.subject.keywordsReflected Waveen_US
item.grantfulltextopen-
item.fulltextWith Fulltext-
Appears in Collections:TL Journal Articles
Files in This Item:
File Description SizeFormat 
1-s2.0-S2214914719304787-main.pdf3.43 MBAdobe PDFThumbnail
View/Open

Page view(s)

119
Updated on Aug 7, 2022

Download(s)

15
Updated on Aug 7, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.