Cook-off Test and Numerical Simulation of HMX-Based Cast Explosive Containing AP

LIU Runze; WANG Xinjie; LIU Ruifeng; DUAN Zhuoping; HUANG Fenglei

doi:10.11858/gywlxb.20220538

Volume 36 Issue 5

Oct 2022

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Chinese Journal of High Pressure Physics > 2022 > 36(5): 055202.

LIU Runze, WANG Xinjie, LIU Ruifeng, DUAN Zhuoping, HUANG Fenglei. Cook-off Test and Numerical Simulation of HMX-Based Cast Explosive Containing AP[J]. Chinese Journal of High Pressure Physics, 2022, 36(5): 055202. doi: 10.11858/gywlxb.20220538

Citation:

LIU Runze, WANG Xinjie, LIU Ruifeng, DUAN Zhuoping, HUANG Fenglei. Cook-off Test and Numerical Simulation of HMX-Based Cast Explosive Containing AP[J]. Chinese Journal of High Pressure Physics, 2022, 36(5): 055202. doi: 10.11858/gywlxb.20220538

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Cook-off Test and Numerical Simulation of HMX-Based Cast Explosive Containing AP

doi: 10.11858/gywlxb.20220538

School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China

Received Date: 18 Mar 2022
Rev Recd Date: 08 Apr 2022

Available Online: 17 Sep 2022

Issue Publish Date: 11 Oct 2022

Abstract

Abstract

In order to study the response characteristics of a new HMX-based cast explosive GOLA-1 (HMX-aluminum-ammonium perchlorate (AP)-binder (Kel-F)) under thermal stimulation, the cook-off tests with heating rates of 1.0 and 1.5 K/min were conducted, and the information such as the temperature rise of the explosive center point and the ignition time was obtained. On that basis, and combined with numerical simulation of cook-off, the ignition position and temperature of explosives were predicted. The numerical simulation is in good agreement with the experimental results. The ignition time deviations of GOLA-1 explosive at heating rates of 1.0 and 1.5 K/min are 1.3% and 1.7%, respectively, indicating that the established simulation model is reasonable. On above basis, numerical simulations at different heating rates were carried out. The results show that when the heating rate decreased to 0.4 K/min, the ignition position moved from the annular area at the bottom edge of the charge to the lower part of the central axis of the charge column. As the heating rate continued to decrease, the ignition position gradually moved to the upper part of the charge, while the heating rate had little effect on the ignition temperature.
- HMX-based PBX,
- ammonium perchlorate,
- thermal safety,
- cook-off test

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References

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Cook-off Test and Numerical Simulation of HMX-Based Cast Explosive Containing AP

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