Performance of Transient Temperature in Hot Spot Ignition

Qun Gao

doi:10.4028/www.scientific.net/AMM.575.425

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 575Performance of Transient Temperature in Hot Spot...

Performance of Transient Temperature in Hot Spot Ignition

Abstract:

This work presents a method to estimate probability initiating combustion and detonation by temperature load in void in energetic material. When a void is compressed its volume decreases and the temperature in the void increases. The local thermal source due to the void deformation in energetic material forms a temperature load which may initiate combustion and detonation. The temperature-time history in the void was called temperature load in this work. Its peak value and holding time are the necessary and sufficient condition initiating combustion or detonation of energetic material surrounding the void. Comparing with the energy acted on the unit area of hot spot, the performance of transient temperature which can better serve to reflect the physical essence in ignition. The main object of this work is to study transmitting process of temperature load from void to energetic material and probability initiating combustion and detonation by temperature load in void.

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Periodical:

Applied Mechanics and Materials (Volume 575)

Pages:

425-430

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.575.425

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Online since:

June 2014

Authors:

Qun Gao*

Keywords:

Energetic Material, Ignition, Temperature Load

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* - Corresponding Author

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