Abstract

The authors take into account the dynamics of temperature variation in the bridge when an electric current flows. The system of differential equations describing the dynamics of temperature variation in the bridge and in the surrounding layers of explosives is presented, and the critical ignition conditions are determined by numerical and analytical methods. Analytical dependences are obtained which allow the critical conditions for ignition of explosive from an incandescent bridge to be calculated, and the theoretical results are compared with experimental data. The theoretical curves describe the experimental results with satisfactory accuracy.

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