detonation parameter
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Author(s):  
Józef Paszula ◽  
Justyna Dziewiątkowska ◽  
Daniel Buczkowski

Despite many years devoted to the study of the mixture of ammonium nitrate and aluminium, the composition is still very popular among others because of manufacture simplicity. Ammonals belong to nonideal explosives whose experimental results deviate from the theoretical ones. This thesis discusses the impact of fragmentation of the main component – ammonium nitrate – on the investigated detonation parameter. With a constant amount of aluminium dust, a series of detonation velocity measurements were carried out. The thesis was based on a continuous method using short-circuit sensors placed in the middle of the load. The methodology for determining the detonation velocity from the obtained voltage-time relationships was developed. Discussions of the obtained measurement results were carried out. Conclusions resulting from research on the development of the detonation process were formulated.


2012 ◽  
Vol 226-228 ◽  
pp. 855-861
Author(s):  
Huan Jun Wang ◽  
Chao Wang ◽  
Yong Wei Yue ◽  
Deng Cheng Sun

In order to calculate the damage effect of the surface warships subjected to modern anti-ship missile precisely, the solid modeling technology is applied firstly to simulating the penetration explosion of the anti-ship missile in this paper and initial detonation parameter of typical anti-ship weapon is solved based on mixed explosion theory for typical warhead and the explosion load is simulated by corrected sphere-feeding method. On that basis, material model and physical equation referred to numerical simulation of warship structure damage with the whole circuit described in detail and specifically. Also presented is typical computational example calculated by the general finite element procedure LS-DYNA which indicates qualitative coincidence from the impact effect to response tend between the numerical simulation results and experimental data and the method can be applied to the engineering calculation to analysis the damage characteristic subjected to penetration load which provides the basis for the research of ship blast-resistant.


2011 ◽  
Vol 84-85 ◽  
pp. 652-656
Author(s):  
Jun Guo ◽  
De Qing Gan ◽  
Jing Tan

This paper discusses the effect factors and proposals between milling process of Ⅱ-powdery emulsion explosives and raw materials, production process parameters. The effect from percentage of the additive M on dispensability and detonation parameter of explosive can be analyzed through the experiments.


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