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 9 of 9 for “"Flyer Plate"”.
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Theory and modeling of laser-driven flyer plate experiments to study explosives under a microscope
… and simulating microscopic size, laser-driven flyer impact experiments at 0.5 – 4.5 km/s, (2) identify and develop effective material models for inert and reactive materials, and (3) utilize this framework to present deeper understanding of reactive behavior for a classical reactive material, …
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Performance of the UBC two-stage light-gas gun
… front of the projectile is a metal disk - the flyer plate. In a typical experiment, the behaviour of the target material under the high pressure conditions that result from the impact between the flyer plate and the target is examined. In this study, the use of gun powder loads of 46 to 150 g, …
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An experimental study of the explosive welding window using a gas-gun
… of explosive welding. The gun can fire a flyer plate at velocities up to 1 km/s using helium as the driving gas for the higher velocity and air for the lower velocity region. The driving pressure is determined by use of scribed bursting discs which have been studied to establish their …
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Reactive solids under shock compression
… an apparatus to launch and monitor laser-driven flyer-plates was developed. This was coupled to a home built photonic Doppler velocimeter (PDV) which tracks the motion of flyer plates and embedded gauges. This system was characterized using PDV to determine the range of impact velocities and …
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Ignition mechanism in nanocomposites thermites
… is targeted by a miniature, laser-driven flyer plate accelerated to a speed in the range of 0.5-2 km/s. Ignition delays observed in both shock and spark ignition experiments for the same material are close to each other and vary in the range of 120 - 200 ns. A reaction mechanism including …
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Mechanochemistry of metal-organic frameworks under compression
… shockwave generated by a table-top laser-driven flyer plate system, has been studied. The shockwave profile after propagation in ZIF-8 layer is significantly stretched in time compared to the direct impact at bare glass substrate, with significantly reduced peak intensity due to the formation of …
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Shock initiation of explosives under the microscope
… 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 description of the novel instrumentation …
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Investigations of Hypervelocity Impact Physics
… in the simulation of a laser ablation-driven flyer plate by using a hot gas with solid initial conditions; similar strategies were used to analyze plasma production in hypervelocity impacts with reasonable correlation to experimental measurements. Lastly, the analysis of bumper material …
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Shock compressing liquids on a tabletop microscope, with special focus on detonating nitromethane
… using a spatially homogenized laser to launch flyer plates, 0.5 mm diameter, 18 – 37 µm thick disks of Al-1100 at velocities up to 4.5 km/s. Upon impact the flyer transmits a shock wave into the desired sample. A full description of the new sample array designed to contain microliters of liquid …