Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Explosive Materials"”.
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Detection of explosive materials
Explosive materials are increasingly being exploited by criminal organisations,with harmful, devastating and destructive effects on targeted societies; highlighting the demand for sensitive, reliable and quick explosive detection methods that can be used in a range of environments. Immunoassays are …
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The Thermomechanical Response of Composite Energetic Materials Under High- and Low-frequency Mechanical Excitations
The preferential generation of heat within hidden explosive materials would be highly valuable to currently-existing explosives detection technologies, due to the associated increase in vapor pressure and thus concentration of detectable vapors. In this work, the thermomechanics of plastic-bonded …
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Standoff Laser Interferometric Photoacoustic Spectroscopy for the Detection of Explosives
… always be a pressing need to detect and identify explosive materials. Performing detection at a standoff distance is much safer and this is the impetus for this work. Photoacoustic spectroscopy is well suited to the task of explosive detection at a standoff distance. A detailed theory of the …
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Computational modeling of advanced, multi-material energetic materials and systems
… simulation tool that can aid in the design of explosive devices by numerically investigating the reactive mechanism of different explosive materials; study how detonation waves travel through them and determine how to initiate explosives with the smallest amount of booster material. These types …
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Methods for optimization of the signature-based radiation scanning approach for detection of nitrogen-rich explosives
… can be used to rapidly detect nitrogen-rich explosives at standoff distances. This technique uses a template-matching procedure that produces a figure-of-merit (FOM) whose value is used to distinguish between inert and explosive materials. The present study develops a tiered-filter …
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Explosive Safety with Regards to Electrostatic Discharge
… event may be significant enough to initiate an explosive material. Explosives materials are materials that many people might recognize as susceptible to initiation due to mechanical insults. Plastic and foam materials are often used to protect explosives. Unfortunately, often many of these …
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Interdigital dielectrometry based detection and identification of dangerous materials for security applications
… searching airline passengers for dangerous and explosive materials. In particular, the possibility that terrorists might hide explosives in shoes has prompted most airline screening stations to require that shoes be removed for x-ray inspection. This thesis is a preliminary investigation of an …
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The Advanced Spectroscopic Analysis of Organic Gunshot Residue and Explosives
… and interpret the presence of gunshot residue or explosives material. This concern is seen in law enforcement agencies and the media throughout the United States and abroad.</p> <p>Currently, the typical method of analyzing gunshot residue in most crime laboratories serves to identify the …
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Highly-selective Chemiresistive Sensing and Analysis of Vapors Using Functionalized Nanotubes
… </p> <p>These derivatized-nanotube-based materials are designed to serve as chemoreceptors that can facilitate the development of highly selective and sensitive chemical and biological sensor arrays through an "electronic nose" approach which mimics the mammalian olfactory system. …
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Shock initiation of explosives under the microscope
… explores the shock compression of solid state explosives by thin, laser-driven flyer plates. These flyer plates consist of aluminum foils, typically 25 – 75 μm thick, which are launched using a Nd:YAG laser with a 20 ns pulse width in a technique developed within the Dlott group. A full …
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Theory and modeling of laser-driven flyer plate experiments to study explosives under a microscope
Studying liquid and solid high-explosive materials requires precise characterization of thermodynamics and chemical kinetics to capture the reactive behavior. Although high explosives have been studied for many decades, there is currently no reactive continuum scale model for characterizing …
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Materials far from equilibrium : shock-induced deformation and chemistry in RDX and experimental development
… by conventional techniques. Measuring shocked materials requires techniques that can measure all of the relevant details (pressure, velocity, crystalline phase, etc.) in a single acquisition, or shot. Over the last century, experimental technique development has led to advances in our …
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Material study on the fragmentation of high explosive, hemispherical shells: Diagnostics techniques and results
The student, Matthew Bielawski, submitted this Thesis for approval on 2024-12-10 at 12:26.