年間 6 号発行
ISSN 印刷: 2150-766X
ISSN オンライン: 2150-7678
Indexed in
MODELING AND SIMULATION OF PLASTIC-BONDED EXPLOSIVE MECHANICAL INITIATION
要約
The combustion to deflagration or detonation phenomenon in HMX-based pressed explosives is still poorly understood and as a result badly predicted today. Safety studies of pyrotechnic structures thus find benefit from a prediction of ignition conditions preliminary to any runaway of the reaction, especially in the case of moderate mechanical impulses such as falls or impacts. A mechanical constitutive law is proposed as well as a mechanism of hot spot formation by local heat due to friction. This engineering model has been implemented in a finite element code. Simulations of a large database show a reasonably good agreement with data.
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Picart Didier, Junqua-Moullet Alexandra, Oblique impacts and friction of HMX and/or TATB-based PBXs, 1979, 2018. Crossref
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Drouet David, Picart Didier, Bailly Patrice, Bruneton Eric, Plastic Dissipation and Hot‐Spot Formation in HMX‐Based PBXs Subjected to Low Velocity Impact, Propellants, Explosives, Pyrotechnics, 45, 12, 2020. Crossref
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Liu Rui, Wang Xin-Jie, Chen Peng-Wan, Kang Ge, Zhu Shun-Peng, Guo Yan-Song, The role of tension–compression asymmetrical microcrack evolution in the ignition of polymer-bonded explosives under low-velocity impact, Journal of Applied Physics, 129, 17, 2021. Crossref
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Yang Kun, Wu Yanqing, Huang Fenglei, Damage and hotspot formation simulation for impact–shear loaded PBXs using combined microcrack and microvoid model, European Journal of Mechanics - A/Solids, 80, 2020. Crossref
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Tchikladzé Nicolas, Picart Didier, Camus Stéphanie, Pressure‐Dependent Chemical Decomposition of an HMX‐Based PBX During Low‐Velocity Impacts, Propellants, Explosives, Pyrotechnics, 2022. Crossref
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Zhu Xintao, Zhang Xiaojing, Li Wenbin, Yao Wenjin, Strain Rate and Temperature Effects of the JOXL‐1 Explosive, Propellants, Explosives, Pyrotechnics, 47, 9, 2022. Crossref