Eigenvalue calculations for porous energetic-material deflagration in the merged-flame regime

1997 ◽  
Author(s):  
Nenad Ilincic ◽  
Stephen Margolis ◽  
Nenad Ilincic ◽  
Stephen Margolis
Keyword(s):  
Energetic Material

Measurement and Modeling of Energetic-Material Mass Transfer to Soil-Pore Water

2006 ◽  
Author(s):  
Stephen W. Webb ◽  
James M. Phelan ◽  
Teklu Hadgu ◽  
Joshua S. Stein ◽  
Cedric M. Sallaberry
Keyword(s):  
Mass Transfer ◽  
Pore Water ◽  
Energetic Material ◽  
Soil Pore Water

Thermal Decomposition of Li(NTO)·2H2O and Na(NTO)·H2O (NTO = Anion of 3-Nitro-1,2,4-triazol-5-one): Kinetics Derived from T-jump/FTIR Spectroscopy

2006 ◽  
Vol 71 (1) ◽  
pp. 129-137 ◽  
Author(s):  
Yuanhua Sun ◽  
Tonglai Zhang ◽  
Jianguo Zhang ◽  
Xiaojing Qiao ◽  
Li Yang ◽  
...  
Keyword(s):  
Ftir Spectroscopy ◽  
Energetic Material ◽  
Burning Surface ◽  
High Sensitivity ◽  
Control Voltage ◽  
Differential Scanning Colorimetry ◽  
Voltage Trace ◽  
Dsc Method ◽  
Phase Chemistry ◽  
Kinetics Of

A "snapshot" simulation of the surface reaction zone is captured by a thin film of material heated rapidly to temperatures characteristic of the burning surface by using the T-jump/FTIR spectroscopy. The time-to-exotherm (tx) kinetics method derived from the control voltage trace of the Pt filament can be introduced to resolve the kinetics of an energetic material owing to its high sensitivity to the thermochemical reactions. The kinetic parameters of the two title compounds are determined under different pressures. The results show that Li(NTO)·2H2O and Na(NTO)·H2O (NTO = anion of 3-nitro-1,2,4-triazol-5-one) exhibit weak pressure dependence, their decomposition is dominated by the condensed phase chemistry irrespective of the pressure in the 0.1-1.1 MPa range. The values of Ea determined here are smaller than those given by a traditional non-isothermal differential scanning colorimetry (DSC) method, which might be resembled as the surface of explosion more closely and enabled the pyrolysis surface to be incorporated into models of steady and possibly unsteady combustion. The kinetics can also be successfully used to understand the behavior of the energetic material in practical combustion problems.

Effects of parametric uncertainty on multi-scale model predictions of shock response of a pressed energetic material

2019 ◽  
Vol 125 (23) ◽  
pp. 235104 ◽  
Author(s):  
Sangyup Lee ◽  
Oishik Sen ◽  
Nirmal Kumar Rai ◽  
Nicholas J. Gaul ◽  
K. K. Choi ◽  
...  
Keyword(s):  
Energetic Material ◽  
Parametric Uncertainty ◽  
Scale Model ◽  
Multi Scale ◽  
Model Predictions ◽  
Shock Response

Introduction of the acylamino group to bridged bis(nitroamino-1,2,4-triazole): a strategy for tuning the sensitivity of energetic materials

2021 ◽  
Vol 45 (38) ◽  
pp. 18059-18064
Author(s):  
Dongxu Chen ◽  
Jiangshan Zhao ◽  
Hongwei Yang ◽  
Hao Gu ◽  
Guangbin Cheng
Keyword(s):  
Energetic Materials ◽  
Energetic Material

Introduction of the acylamino group into energetic material compounds will contribute to balancing the sensitivity and the energy.

scholarly journals Multiscale modeling of shock wave localization in porous energetic material

2018 ◽  
Vol 97 (1) ◽  
Author(s):  
M. A. Wood ◽  
D. E. Kittell ◽  
C. D. Yarrington ◽  
A. P. Thompson
Keyword(s):  
Shock Wave ◽  
Multiscale Modeling ◽  
Energetic Material ◽  
Wave Localization

Strengthening of PBX Perforated Plate Based on Polymer Coating

2021 ◽  
Vol 891 ◽  
pp. 137-142
Author(s):  
Sheng Nan Wang ◽  
Hong Ping Zhou ◽  
Hong Wei Yuan ◽  
Hai Xiao Gan ◽  
Wen Long Wang ◽  
...  
Keyword(s):  
Performance Optimization ◽  
Coating Layer ◽  
Weak Link ◽  
Energetic Material ◽  
Perforated Plate ◽  
Image Correlation ◽  
Weapon System ◽  
Load Carrying ◽  
Modification Method ◽  
Energy Dissipation Capacity

Perforated structure is the mechanical weak link of polymer-bonded explosive (PBX). Improving its mechanical property may promote the reliability and effectiveness of weapon system. In this study, strengthening of the perforated PBX plate is conducted by employing surface coating. Digital image correlation (DIC) analysis results suggest that the regional applied epoxy coating layer is able to improve the mechanical properties of the plate. By confining the deformation and releasing the stress concentration around the perforation, the coating layer enhances the load carrying ability and energy dissipation capacity of the plate significantly. This investigation may provide a convenient and effective structure modification method for energetic material, and at the same time, lay foundation to the performance optimization of weapon system.

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