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performamance of transient tempertureature in hot spot ignition
Zhang Qi * #
State key Lab. of Explosion Science and Tech., Beijing Institute of Technology, Beijing 100081
*Correspondence author
#Submitted by
Subject:
Funding: Foundation for Doctor Dissertation of China(No.20111101110008)
Opened online:26 July 2012
Accepted by: none
Citation: Zhang Qi.performamance of transient tempertureature in hot spot ignition[OL]. [26 July 2012] http://en.paper.edu.cn/en_releasepaper/content/4485236
 
 
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.
Keywords:ignition; temperature load; energetic material
 
 
 

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