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 20 of 707 for “"Blast"”.
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ROACH accelerated BLAST
Reconfigurable computing, in recent years, has been taking great strides in becoming part of mainstream computing largely due to the rapid growth in the size of FPGAs and their ability to adapt to certain complex applications efficiently. This dissertation investigates the reuse of application …
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Structural blast design
Blast design is a necessary part of design for more buildings in the United States. Blast design is no longer limited to underground shelters and sensitive military sites, buildings used by the general public daily must also have satisfactory blast protection. Integrating blast design into existing …
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Blast round design for a small charge automated drill and blast system
Includes bibliographical references (pages 141-143).
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Computer aided blast fragmentation prediction
The complex and non-linear nature of blast fracturing have restricted common blast design mostly to empirical approaches. The code developed for this investigation avoids both empiricism and large memory requirement in order to simulate the pattern of interacting radial fractures from an array of …
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Empirical investigation of underwater blast
Background Most demolition practitioners seem to accept that an explosive charge is placed in direct contact with the target surface. Placing the charge in this way may be very convenient, but from an under water demolition point of view, this may not be the most effective placement. It should be …
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Probabilistic models for blast parameters and fragility estimates of steel columns subject to blast loads
… probabilities of steel columns subject to blast loads. The framework considers the uncertainties in the blast phenomenon, the demands imposed on the column, and the capacities of the column for the limit states of flexure, local buckling and global buckling. As part of the work, we propose …
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Pressure versus impulse graph for blast-induced traumatic brain injury and correlation to observable blast injuries
… increased use of explosive devices in combat, blast induced traumatic brain injury (bTBI) has become one of the signature wounds in current conflicts. Animal studies have been conducted to understand the mechanisms in the brain and a pressure versus time graph has been produced. However, the …
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Blast wave attenuation using liquid sheets
Strong blast waves, such as those associated with gun fire or rocket exhausts, can cause serious physiological and/or structural damage. It is necessary, therefore, to develop ways in which to minimise this damage whilst still allowing the system that produces the blast waves to function normally. …
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Numerical Modeling of Blast-Induced Liquefaction
… sandy soil induced by nearby controlled blasts. The purpose of the study is to help quantify soil characteristics under multiple and consecutive high-magnitude shock environments similar to those produced by large earthquakes. The simulation procedure involved the modeling of a …
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Epigenetic Mechanisms in Blast-Induced Neurotrauma
Blast-induced neurotrauma (BINT) is a prevalent brain injury within both military and civilian populations due to current engagement in overseas conflict and ongoing terrorist events worldwide. In the early 2000s, 78% of injuries were attributable to an explosive mechanism during overseas …
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Investigating Injury Pathology of Blast-induced Polytrauma and Assessing the Therapeutic Role of Hemostatic Nanoparticles after Blast Exposure
… combat related injuries (Ramasamy et al. 2008). Blast overpressure from explosions can cause barotrauma to the lungs and the brain. Blast-induced mild traumatic brain injury has been labeled the "signature wound" of current military conflicts in Iraq and Afghanistan (Snell and Halter 2010). In …
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Performance assessment of simple blast wall systems
To view the abstract, please see the full text of the document.
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Energy-absorbing sandwich structures under blast loaDing
… transferred more energy to a structure under blast loading relative to a structure without an energy absorbing faceplate. The objective of this work is to simulate non-uniform response of sandwich panels subject to blast loaDing This involves an investigation into the optimum design of a …
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Proton form factor ratio measurement with BLAST
… a polarized internal hydrogen gas target and the BLAST detector at the MIT Bates Lab. Beam-target spin asymmetries are measured in several bins of Q2 for both left and right sector of BLAST, the super-ratio of these left/right asymmetries is formed and GPE/GPM is extracted.</p>
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Vehicle Shaping for Mine Blast Damage Reduction
When a buried explosive is detonated beneath a target (such as a vehicle), the target is rapidly loaded by flying ejecta, high pressure gas, and shock waves. This paper explores how changes in the shape of the underside of a target affect the total impulse captured from the detonation of a buried …
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Simulating Blast Effects In Steel Skeletal Structures
… framework, which enables the consideration of blast effects in steel skeletal structures composed of wide-flange members. This research is split into three main parts: (1) development of an air blast load generation code, derived from openly available sources, to calculate spatially and …
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Blast diagnostic tools and techniques: a review
… pressure sensor also plays an important role in blast diagnostics. This type of sensor represents a niche part of the pressure transducer market and are primarily used to capture the detonation pressure for high explosives. In this study, appropriate measurement techniques, in addition to the …
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Blast Propagation and Damage in Urban Topographies
… for an improved approach to the prediction of blast propagation in urban cityscapes. Urban geometry has a significant impact on blast wave propagation. Presently, only computational fluid dynamics (CFD) methods adequately simulate these effects. However, for large-scale urban domains, these …
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