Study on the Detonation Reaction-zone and Energy Release Characteristics of a Cast HMX-based PBX

• Autorzy: Tan Kaiyuan , Han Yong , Luo Guan , Yin Ming , Wen Shanggang , Huang Fenglei

Identyfikatory

DOI

10.22211/cejem/112285

• Języki publikacji: EN

Abstrakty

EN

This article gives a comprehensive study of the detonation reaction-zone (DRZ) and energy release characteristics of a cast HMX-based polymer-bonded explosive, PBX-91C, which has been demonstrated in our previous study to be an insensitive explosive. The DRZ of PBX-91C was studied by the impedance window method; the detonation reaction time, DRZ length, and detonation pressure were obtained. The cylinder test was employed to evaluate the acceleration ability of PBX-91C, the Gurney velocity and the parameters of the Jones-Wilkins-Lee (JWL) equation of state (EOS) for PBX-91C. The shock overpressure test was carried out to evaluate the energy release characteristics of PBX-91C in free-field; TNT was also tested for comparison. On the basis of the parameters of the JWL EOS determined by the cylinder test, three-dimensional numerical simulations of the shock overpressure tests were conducted. The results showed that PBX-91C is substantially more powerful than TNT; moreover, the energy release of PBX-91C is more rapid. All of these results suggest that the detonation performance of PBX-91C is close to that of RDX. PBX-91C can be a good candidate for main charges as it has both high energy and low sensitivity.

Słowa kluczowe

EN

cast polymer-bonded explosive; detonation reaction zone; energy release characteristics; shock overpressure

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2019
• Tom: Vol. 16, no. 3
• Strony: 380--398
• Opis fizyczny: Bibliogr. 28 poz., rys., tab.

Twórcy

autor

Tan Kaiyuan

• School of Mechatronic Engineering, Beijing Institute of Technology (BIT), Beijing 100081, China
• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621999, Sichuan, China

autor

Han Yong

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621999, Sichuan, China

autor

Luo Guan

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621999, Sichuan, China

autor

Yin Ming

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621999, Sichuan, China

autor

Wen Shanggang

• Institute of Chemical Materials, China Academy of Engineering Physics (CAEP), Mianyang 621999, Sichuan, China

autor

Huang Fenglei

• School of Mechatronic Engineering, Beijing Institute of Technology (BIT), Beijing 100081, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).