Preliminary simulation of hot spot formation for plastic bonded explosives at mesoscale

FU Hua; LIU Cang-li; WANG Wen-qiang; Tan Duo-wang; LI Tao

doi:10.11883/1001-1455(2008)06-0515-06

Volume 28 Issue 6

Sep. 2014

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FU Hua, LIU Cang-li, WANG Wen-qiang, Tan Duo-wang, LI Tao. Preliminary simulation of hot spot formation for plastic bonded explosives at mesoscale[J]. Explosion And Shock Waves, 2008, 28(6): 515-520. doi: 10.11883/1001-1455(2008)06-0515-06

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FU Hua, LIU Cang-li, WANG Wen-qiang, Tan Duo-wang, LI Tao. Preliminary simulation of hot spot formation for plastic bonded explosives at mesoscale[J]. Explosion And Shock Waves, 2008, 28(6): 515-520. doi: 10.11883/1001-1455(2008)06-0515-06

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Preliminary simulation of hot spot formation for plastic bonded explosives at mesoscale

doi: 10.11883/1001-1455(2008)06-0515-06

1.
Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics,China Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Publish Date: 2008-11-25

Abstract

Abstract

The preliminary mesoscale simulation was done for the hot spot formation of plastic bonded explosives(PBX) under shock loading with the combined method of the finite element and discrete element methods. The explosive crystals and binder are simulated using FEM and DEM, respectively. Simulated results indicate that hot spots focus on the binder region between crystals. The important factor of hot spot formation is the shock interaction between crystals and binder, the temperature of HMX is lower than that of binder, and the periphery temperature is higher than the inner temperature in HMX crystals.
- fluid mechanics,
- hot spot,
- mesoscale simulation,
- PBX,
- finite element method,
- discrete element method

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