A numerical study on the thermal initiation of a confined explosive in 2-D geometry

Date

2011-02-15

Author

Aydemir, Erdogan
Ulaş, Abdullah

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Insensitive munitions design against thermal stimuli like slow or fast cook-off has become a significant requirement for today's munitions. In order to achieve insensitive munitions characteristics, the response of the energetic material needs to be predicted against heating stimuli. In this study, a 2D numerical code was developed to simulate the slow and fast cook-off heating conditions of confined munitions and to obtain the response of the energetic materials. Computations were performed in order to predict the transient temperature distribution, the ignition time, and the location of ignition in the munitions. These predictions enable the designers to have an idea of when and at which location the energetic material ignites under certain adverse surrounding conditions. In the paper, the development of the code is explained and the numerical results are compared with available experimental and numerical data in the literature. Additionally, a parametric study was performed showing the effect of dimensional scaling of munitions and the heating rate on the ignition characteristics.

Subject Keywords

Environmental Engineering, Waste Management and Disposal, Pollution, Health, Toxicology and Mutagenesis, Environmental Chemistry

URI

https://hdl.handle.net/11511/35976

Collections

Department of Mechanical Engineering, Article