Search results | J. Murrey Atkins Library

Title: A GENERAL THERMAL THICKNESS MODEL AND A HEATING RATE RELATED IGNITION CRITERION FOR COMBUSTIBLE SOLIDS
Author: Tian, Ning
Date Created: 2013
Subjects--Topical: Mechanical engineering
Description: The objective of this research is to investigate the ignition behavior of combustible solid materials in fire. Three key tasks were conducted for it: (1) a new theoretical temperature profile prediction model, referred as General Thermal Thickness...

Title: A MACHINING STABILITY MODEL WITH PROCESS DAMPING FOR HARD-TO-MACHINE MATERIALS
Author: Tyler, Christopher
Date Created: 2015
Subjects--Topical: Mechanical engineering
Description: A substantial fraction of current machining research is directed towards increased productivity. A fundamental limitation is unstable vibration, or chatter, during cutting. Stability lobe diagrams, which relate the allowable chip width to spindle ...

Title: A MESHLESS METHOD WITH ENRICHED BASIS FUNCTIONS FOR SINGULARITY PROBLEMS
Author: Hong, Won-Tak
Date Created: 2009
Subjects--Topical: Mechanical engineering, Mechanics, Mathematics
Description: For the last several decades, the Finite Element Method (FEM) has been a powerful tool in solving challenging science and engineering problems, especially when solution domains have complex geometry. However the mesh refinements and construction o...

Title: A Novel Fluorescence Based Method of Assessing Subsurface Damage in Optical Materials
Author: Williams, Wesley
Date Created: 2009
Subjects--Topical: Mechanical engineering, Materials science, Optics
Description: Lapping and polishing are loose abrasive finishing processes that have been used to achieve critical surface parameters in optical materials for centuries. These processes remove material from the surface through a variety of mechanical and chemic...

Title: A Numerical Study of Inhomogeneous Variable-Density Turbulence in Planar and Convergent Geometries.
Author: Djibrilla Boureima, Ismael
Date Created: 2019
Subjects--Topical: Mechanical engineering
Description: ISMAEL DJIBRILLA BOUREIMA. A Numerical Study of Inhomogeneous Variable-Density Turbulence in Planar and Convergent Geometries. (Under the direction of DR. PRAVEEN RAMAPRABHU)Hydrodynamic instabilities govern the growth of perturbations at the inte...

Title: A PROCESS TO EVALUATE COMMERCIAL SOFTWARE PACKAGES THAT ESTIMATE MEASUREMENT UNCERTAINTY THROUGH SIMULATION
Author: BEAMAN, JONATHAN
Date Created: 2011
Subjects--Topical: Mechanical engineering
Description: Coordinate Measuring Machines (CMMs) can be used to measure a great variety of parts. Essentially, any three-dimensional surface can be evaluated. Characterizing the measurement uncertainty in a way that maintains traceability in accordance with i...

Title: A Semi-Quantitative Schlieren High-Speed Flow Diagnostic: Analysis of High-Pressure-Ratio, Overexpanded Planar Flow in Rocket Nozzles
Author: Thorsett-Hill, Karen
Date Created: 2012
Subjects--Topical: Mechanical engineering
Description: This work introduces a semi-quantitative schlieren (SQS) method which is used to qualitatively and quantitatively analyze complex, unsteady, compressible flows in a small, planar convergent-divergent nozzle. A basic schlieren system is used to ima...

Title: A comprehensive study of the microstructure and mechanical behavior of HCP-based multilayered nanofilms
Author: Lu, Yuanyuan
Date Created: 2014
Subjects--Topical: Mechanical engineering, Materials science
Description: Metallic multilayer films with the individual layer thickness h decreased to submicron or even less have attracted a great deal of attention over the past decades because of their impressive mechanical properties, especially the high strength. Mos...

Title: A numerical study of tillage tool wear during plowing of sandy soil
Author: GOEL, GAURAV
Date Created: 2013
Subjects--Topical: Mechanical engineering
Description: Wear of tillage tools during tilling operations leads to increase in power requirements, frequent downtimes for tool replacement, loss of production and an increase in the equipment and operational costs. A large number of variables - such as the ...

Title: Additive Manufacturing of 3D Printed SiC Composites: Strengthening and Densification through Surface Modification and Use of Mineral Binders
Author: Chandrasekaran, Sujithra
Date Created: 2023
Subjects--Topical: Engineering, Materials science, Mechanical engineering
Description: Manufacturing of dense SiC composites counts mainly on the thermal oxidation of the carbide into silica. The irregularity of the silica layer and its limited thickness weaken the bond between particles and diminish the good thermo-mechanical prope...

Title: Additive manufacturing of PVDF-TrFE piezoelectric and pyroelectric sensors
Author: Marandi, Rafi
Date Created: 2023
Subjects--Topical: Mechanical engineering
Description: Additive manufacturing, specifically Fused Deposition Modeling (FDM) method, has emerged as a promising technique for rapid prototyping. Using FDM, complex geometries can be created using precise layer by layer deposition of material. Among the ad...

Title: Analysis of Tip Injection Parameters at Different Tip Clearance Sizes on the Performance of the Transonic Axial Compressor Rotor
Author: Sheikhshahrokhdehkordi, Mohammadamin
Date Created: 2023
Subjects--Topical: Mechanical engineering
Description: The main objective of this thesis is to investigate the near-stall endwall flow structures of the gap between the blade and the casing on the performance and the rotor stability of a transonic compressor rotor with and without high-speed endwall a...

Title: Areal gear metrology with modified flanks
Author: Ni, Kang
Date Created: 2017
Subjects--Topical: Mechanical engineering
Description: Gears are critical mechanical components in power transmission systems, used across a board spectrum of industries such as automobile, aerospace and renewable energy. Given the advancement of design and manufacture of gears in the past decades, th...

Title: Aspects of Turbulence and Stochastic Processes in Fluid Mechanics
Author: Dahlberg, Jerry
Date Created: 2018
Subjects--Topical: Mechanical engineering, Fluid mechanics
Description: Three experimental studies are executed to examine aspects of turbulence and stochastic processes in fluid mechanics. Each experimental study is conducted in a different medium; water, wind and vibrated grain piles. Each study requires upgrades to...

Title: BUCKLING LOAD PREDICTIONS IN PRESSURE VESSELS UTILIZING MONTE CARLO METHOD
Author: Brar, Gurinder
Date Created: 2009
Subjects--Topical: Mechanical engineering
Description: In practice, large diameter, thin wall shells of revolution are never fabricated with constant diameters and thicknesses over the entire length of the assembly. These initial geometric imperfections have significant effect on the load carrying cap...

Title: CHARACTERIZATION OF ENGINEERED SURFACES
Author: Verma, Ritwik
Date Created: 2010
Subjects--Topical: Mechanical engineering
Description: In the recent years there has been an increasing interest in manufacturing products where surface topography plays a functional role. These surfaces are called engineered surfaces and are used in a variety of industries like semi conductor, data s...

Title: COMPARATIVE STUDY OF THE EFFECT OF IMPURITIES ON THE DUCTILITY OF TANTALUM AND TUNGSTEN BASED ON ATOMISTIC AND FIRST PRINCIPLES CALCULATIONS
Author: Pan, Zhiliang
Date Created: 2012
Subjects--Topical: Mechanical engineering, Materials science
Description: Tungsten and tantalum are neighbors in the Periodic Table of the Elements and, as refractory metals, both have very high melting points (tungsten: 3422oC, tantalum: 2996oC). However, the ductility of the two metals is quite different especially at...

Title: COMPRESSIVE BEHAVIOR OF BULK METALLIC GLASS UNDER DIFFERENT CONDITIONS - COUPLED EFFECT OF TEMPERATURE AND STRAIN RATE
Author: Yin, Weihua
Date Created: 2013
Subjects--Topical: Mechanical engineering, Materials science
Description: Metallic glass was rst reported in 1960 by rapid quenching of Au-Si alloys. But, due to the size limitation, this material did not attract remarkable interest until the development of bulk metallic glasses (BMGs) with specimen sizes in excess of 1...

Title: CONSTITUTIVE MODELING OF ALUMINUM FOAM AND FINITE ELEMENT IMPLEMENTATION FOR CRASH SIMULATIONS
Author: Bi, Jing
Date Created: 2012
Subjects--Topical: Mechanical engineering, Engineering
Description: In the past decades metallic foams have been increasingly used as filler materials in crashworthiness applications due to their relatively low cost and high capacity of energy absorption. Due to the destructive nature of crashes, studies on the pe...

Title: Calibrating slope-dependent errors in profilometry
Author: Zhou, Yue
Date Created: 2014
Subjects--Topical: Mechanical engineering, Optics
Description: Optical profilometers, such as scanning white light interferometers and confocal microscopes, provide high resolution measurements and are widely utilized in many fields for measuring surface topography. The techniques are capable of high-speed su...