1. Initiation Capacity of a Specially Shaped Booster Pellet and Numerical Simulation of Its Initiation Process.
- Author
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Hu, Li-Shuang, Hu, Shuang-Qi, Cao, Xiong, and Zhang, Jian-Ren
- Subjects
- *
DIMENSIONS , *CONCAVE functions , *ENERGY consumption , *COMPUTER simulation , *PARAMETER estimation - Abstract
The insensitive main charge explosive is creating new requirements for the booster pellet of detonation trains. The traditional cylindrical booster pellet has insufficient energy output to reliably initiate the insensitive main charge explosive. In this research, a concave spherical booster pellet was designed. The initiation capacity of the concave spherical booster pellet was studied using varied composition and axial steel dent methods. The initiation process of the concave spherical booster pellet was also simulated by ANSYS/LS-DYNA. The results showed that using a concave spherical booster allows a 42% reduction in the amount of explosive needed to match the initiation capacity of a conventional cylindrical booster of the same dimensions. With the other parameters kept constant, the initiation capacity of the concave spherical booster pellet increases with decreased cone angle and concave radius. The numerical simulation results are in good agreement with the experimental data. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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