Search results
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Title
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A NUMERICAL STUDY OF INTERFACIAL INSTABILITIES IN SHOCKED MATERIALS WITH SURFACE TENSION
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Author
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Bigdelou, Pedram
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Date Created
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2020
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Subjects--Topical
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Fluid mechanics, Physics
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Description
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Shock-driven multi-material flows occur in several applications including shock wave lithotripsy, underwater explosions, droplet combustion, propeller cavitation and ejection of material from surfaces subject to blast loading. Such flows are highl...
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Title
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A Random Hierarchical Laplacian
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Author
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Ray, Elijah
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Date Created
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2013
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Subjects--Topical
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Mathematics
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Description
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The Hierarchical Laplacian, proposed in Dyson's theory of one-dimensional ferromagnetic phase transitions, has a discrete spectrum with each isolated eigenvalue having infinite multiplicity. As a result, the integrated density of states is piecewi...
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Title
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A Study on Soil-Structure Interaction of Axially Loaded Sheet Piles
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Author
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Sylvain, Matthew
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Date Created
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2019
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Subjects--Topical
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Civil engineering
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Description
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Sheet piles are geotechnical structural elements often used in canals and rivers for soil retention and scour protection. Short span bridge abutment design in North Carolina and the U.S., for locations near bodies of water, typically uses sheet pi...
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Title
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Correction of the post-necking True Stress-Strain data using Instrumented Nanoindentation
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Author
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Romero Fonseca, Ivan
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Date Created
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2014
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Subjects--Topical
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Mechanical engineering, Materials science
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Description
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The study of large plastic deformations has been the focus of numerous studies particularly in the metal forming processes and fracture mechanics fields. A good understanding of the plastic flow properties of metallic alloys and the true stresses ...
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Title
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Dynamic Remedial Action Scheme Using Online Transient Stability Analysis
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Author
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Shrestha, Arun
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Date Created
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2016
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Subjects--Topical
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Electrical engineering, Engineering, Power resources
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Description
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Economic pressure and environmental factors have forced the modern power systems to operate closer to their stability limits. However, maintaining transient stability is a fundamental requirement for the operation of interconnected power systems. ...
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Title
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Effect of confined rolling on structure-property relationships of Mg-Al alloys.
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Author
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Krishnan, Pavitra
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Date Created
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2021
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Subjects--Topical
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Materials science
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Description
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High performance, light weight alloys are need-of-the particularly in the defense, automotive and aerospace sectors. Magnesium is a prime candidate since it is the lightest structural metal having a mass density of 1.74g/cm3 and is the sixth most ...
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Title
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FIBER BASED TOOLS FOR POLISHING OPTICAL MATERIALS
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Author
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Shahinian, Hossein
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Date Created
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2018
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Subjects--Topical
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Mechanical engineering, Optics
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Description
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In this dissertation, the development of alternative fiber based polishing tools for the finishing of precision freeform and aspherical optics is introduced. Freeform and aspherical optics, i.e. optics with varying radius of curvatures (ROC), are ...
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Title
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Feature-based automated tool path planning for discrete geometry
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Author
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Shen, Fei
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Date Created
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2022
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Subjects--Topical
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Mechanical engineering
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Description
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Computer Numerical Control (CNC) machining is a critical manufacturing technology used in effectively all modern products. Any improvement in efficiency or automation that reduces the cost of CNC machining is of tremendous value to the manufacturi...
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Title
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Finite element modeling and simulation of occupant responses in highway crashes
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Author
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Li, Ning
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Date Created
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2014
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Subjects--Topical
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Mechanical engineering, Mechanics
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Description
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Roadside barrier systems play an important role in reducing the number of fatalities and the severity of injuries in highway crashes. After decades of work by researchers and engineers, roadside barriers have been improved and are generally effect...
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Title
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Improving Thulium Fiber Laser Lithotripsy Efficiency
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Author
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Hardy, Luke
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Date Created
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2018
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Subjects--Topical
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Optics
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Description
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Kidney stone disease affects approximately 10% of the U.S. population. Conventional Holmium:YAG infrared laser lithotripsy is a standard minimally invasive treatment that operates based on a photothermal interaction with the main chromophore in ti...
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Title
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MECHANICAL AND THERMAL PROPERTIES OF TWO-DIMENSIONAL MATERIAL
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Author
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JIA, DAN
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Date Created
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2015
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Subjects--Topical
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Mechanical engineering, Engineering
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Description
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The aim of this dissertation is to investigate the mechanical and thermal propertiesof two-dimensional materials. The discovery of the fantastic properties of graphene,such as high mechanical strength and excellent electronic properties, has stimu...
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Title
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MECHANICAL BEHAVIOR AND DEFORMATION MECHANISM IN LIGHT METALS AT DIFFERENT STRAIN RATES
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Author
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Shen, Jianghua
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Date Created
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2015
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Subjects--Topical
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Mechanical engineering, Mechanics, Materials science
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Description
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ABSTRACTJIANGHUA SHEN. Mechanical behavior and deformation mechanism in light metals at different strain rates. (Under the direction of Dr. QIUMING WEI)Developing light metals that have desirable mechanical properties is always the object of the e...
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Title
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MODELING TRAVEL DEMAND AND CRASHES AT MACROSCOPIC AND MICROSCOPIC LEVELS
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Author
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Duddu, Venkata Ramana
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Date Created
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2012
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Subjects--Topical
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Civil engineering, City planning, Transportation--Planning
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Description
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Accurate travel demand / Annual Average Daily Traffic (AADT) and crash predictions helps planners to plan, propose and prioritize infrastructure projects for future improvements. Existing methods are based on demographic characteristics, socio-eco...