Nonuniform laser ignition in energetic materials

2003 ◽  
Vol 175 (11) ◽  
pp. 1929-1951 ◽  
Author(s):  
John J. Granier ◽  
Thomas Mullen ◽  
Michelle L. Pantoya
Keyword(s):  
Energetic Materials ◽  
Laser Ignition

Laser Ignition of Energetic Materials

2015 ◽  
Vol 40 (3) ◽  
pp. 439-440
Author(s):  
Ernst‐Christian Koch
Keyword(s):  
Energetic Materials ◽  
Laser Ignition

scholarly journals Defects-Induced Hot Spots in TATB

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Zhonghua Yan ◽  
Chuanchao Zhang ◽  
Hongwei Yan ◽  
Zhijie Li ◽  
Li Li ◽  
...  
Keyword(s):  
Hot Spots ◽  
Energetic Materials ◽  
Finite Difference Time Domain ◽  
Fdtd Method ◽  
Three Dimensional ◽  
Laser Ignition ◽  
Ignition Process ◽  
Incident Laser ◽  
Three Dimensional Models ◽  
Difference Time

We investigate the interaction between the laser and energetic materials with different defects. The three-dimensional models of triaminotrinitrobenzene (TATB) explosives containing spherical pores, craters, and cracks are established, respectively. The laser ignition process of TATB is simulated with three-dimensional finite difference time domain (3D-FDTD) method to study the electromagnetic field distribution surrounding these defects with 355 nm laser incidence. It indicates that the larger defects in the TATB energetic materials have the stronger electric field modulations to initial incident laser for all the three defects, which is easier to lead to the generation of hot spots. Furthermore, TATB materials with spherical pore defects and crater defects are easier to form hot spots than those with narrow crack defects.

INVESTIGATION ON OXYGEN-EQUILIBRIUM EFFECTS OF LASER IGNITION OF ENERGETIC MATERIALS

2006 ◽  
Vol 20 (07) ◽  
pp. 353-358 ◽  
Author(s):  
SHI-BIAO XIANG ◽  
XU XIANG ◽  
GUANG HUA ◽  
LANG CHEN ◽  
CHANG-GEN FENG
Keyword(s):  
Energetic Materials ◽  
Threshold Energy ◽  
Initial Mixture ◽  
Lower Threshold ◽  
Laser Ignition ◽  
Mass Ratio ◽  
Oxygen Equilibrium ◽  
System Composition

An investigation on oxygen-equilibrium of laser ignition of energetic materials was carried out through experiments. The threshold energy of laser ignition of several systems such as Zr/KClO 4, Ti/KClO 4, and Mg/KClO 4 were measured with different system composition. The results show that the mass ratio of initial mixture powders has a significant effect on the threshold energy of ignition. The threshold energy presents a minimum with increasing mass ratio, which corresponds to an oxygen-rich system composition. That is, an oxygen-rich composition is favorable to laser ignition. The ignition requires lower threshold, or energetic materials have relatively higher laser sensitivity. Also the findings were theoretically analyzed.

Laser Ignition of Energetic Complexes: Impact of Metal Ion on Laser Initiation Ability

2021 ◽  
Author(s):  
Yu Wang ◽  
Siyu Xu ◽  
Heng Li ◽  
Haixia Ma ◽  
Yazhou Zhang ◽  
...  
Keyword(s):  
Energetic Materials ◽  
Metal Ion ◽  
Laser Ignition ◽  
Laser Initiation

Laser ignition of explosives is believed a safe and reliable initiation method to trigger the reaction of energetic materials. Energetic complexes including most primary explosives are a class of important...

Modeling of high energy laser ignition of energetic materials

2008 ◽  
Vol 103 (8) ◽  
pp. 083536 ◽  
Author(s):  
Kyung-cheol Lee ◽  
Ki-hong Kim ◽  
Jack J. Yoh
Keyword(s):  
Energetic Materials ◽  
High Energy ◽  
Laser Ignition ◽  
Energy Laser ◽  
High Energy Laser

Laser Ignition of Energetic Materials

2014 ◽  
Author(s):  
S Rafi Ahmad ◽  
Michael Cartwright
Keyword(s):  
Energetic Materials ◽  
Laser Ignition
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