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Effect of chip thickness, sub-critical bifurcations and process parameters in high-speed milling
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The main focus of the current research is to experimentally and numerically investigate of subcritical bifurcations in milling accounting for actual ...
Analysis of oscillatory flow and heat transfer in an oscillating heat pipe
(University of Missouri--Columbia, 2010)
An advanced physical and theoretical model of a U-shaped minichannel - a building block of an Oscillating Heat Pipe (OHP) - has been developed step by step. a) The gravity and pressure loss at the bend are included in the ...
Molecular dynamics simulation of nanosintering processes
(University of Missouri--Columbia, 2010)
In this thesis, two scenarios of simulations are studied by molecular dynamics (MD) method. The first one will investigate the neck growth in the laser sintering of different-size gold (100) nanoparticles under different ...
Automated trajectory generation and guidance for a new launch vehicle flight phases
(University of Missouri--Columbia, 2010)
Much effort has been put into developing technologies for next generation re-usable launch vehicles. Fully re-usable launch vehicles include a booster stage that is designed to land, usually near the launch site, after it ...
An axisymmetric interfacial tracking model for melting-vaporization-resolidification in a thin metal film irradiated by pico to femtosecond pulse lasers
(University of Missouri--Columbia, 2010)
A two dimensional axisymmetric, interfacial tracking method is developed to model rapid melting and solidification of a free standing metal film subjected to an ultra-short laser pulse. Finite volume method is employed to ...
An integrated approach for characterization of properties and mesostructure for FDM Ultem 9085
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The Fused Deposition Modeling (FDM) process is a layered prototyping technique used to build prototypes out of thermoplastic materials. It is currently ...
Flight mechanics and control for an unpowered reusable launch vehicle
(University of Missouri--Columbia, 2011)
A new strategy has been developed to aid in allowing a reusable launch vehicle to complete the Trajectory Area Energy Management (TAEM) phase of reentry. Using the new trajectory planning and tracking strategy, the reusable ...
Electron emission thermal energy conversion
(University of Missouri--Columbia, 2010)
Electron emission from a surface can be achieved via two mechanisms: tunneling and thermionics. Converting thermal energy to electrical power using these mechanisms is achieved by generation of an electron current from the ...
Thermal-mechanical analysis of a low-enriched uranium foil based annular target for the production of molybdenum-99
(University of Missouri--Columbia, 2011)
One of the US department of Energy's global threat reduction initiative goals is to eliminate the use of high-enriched uranium from the production of the radio-isotope Molybdenum-99. One strategy to achieve this goal is ...
Mean grain size estimation for copper-alloy samples based on attenuation coefficient estimates
(University of Missouri--Columbia, 2011)
A polycrystalline metal's grain size affects its mechanical properties; therefore, the ability to effectively and easily monitor grain size during a manufacturing process is critical. Conventional destructive tests utilized ...
Development of a predictive model for the design of parts fabricated by fused deposition modeling
(University of Missouri--Columbia, 2010)
The prediction of the behavior of parts fabricated by fused deposition modeling (FDM) is an essential part of transitioning the process from rapid prototyping to rapid manufacturing. The overall part strength of an FDM ...
Hydro-mechanical analysis of low enriched uranium fuel plates for University of Missouri Research Reactor
(University of Missouri--Columbia, 2012)
As part of the Global Threat Reduction Initiative (GTRI) Reactor Conversion program, work is underway to analyze and validate a new fuel assembly for the University of Missouri Research Reactor (MURR). The Low Enriched ...
Numerical study of shock driven multiphase systems with reactions
(University of Missouri--Columbia, 2018)
This work details the analysis of the shock-driven multiphase instability (SDMI) of a gas-particle system and implementation of reaction model for multiphase detonation simulation. 3D numerical simulations were carried out ...
Development of a flow-based predictive model for the coalescence of fused deposition modeling filaments
(University of Missouri--Columbia, 2014)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] As rapid prototyping processes continue to be developed, there is increasing use of such processes for the production of end-use parts. Fused deposition ...
Numerical method for shock driven multiphase flow with evaporating particles
(University of Missouri--Columbia, 2016)
This work is done in part as a requirement towards the fulfillment of the master's degree. Four different chapters were explored in this work. Chapter 1 gives the overview of the various works that have been done in the ...
Mechanical analysis of a growing carbon nanotube forest
(University of Missouri--Columbia, 2016)
Carbon nanotube forests are vertically oriented and entangled tubes that grow normal to a given substrate. The excellent thermal, mechanical, and electronic properties of individual carbon nanotubes motivates their study. ...
Design of experimental apparatus for generation and measurement of an aerosol
(University of Missouri--Columbia, 2017)
This work is done as a requirement for the master's degree. In this work, a system for generating aerosol delivery into shock tube for interface creation and a method to measure aerosol is developed. In chapter 1, a brief ...
Research & development of Q-Baller -- a spherical wheeled robot
(University of Missouri--Columbia, 2017)
The Spherical Wheeled Robot (Ball-Bot) is a family of robots that can maintain balance standing on a ball and use it as its wheel to move around. In recent years, there have been several successful Ball-Bot designs. We ...
Evaluation of 3d printed polycaprolactone hydroxyapatite tissue scaffolds created using fused deposition modeling
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Biomaterial tissue scaffolds continue to grow as a potential solution for drug release and regenerative medicine. With the growing technology of 3D ...
Theoretical and experimental study of an evaporative cooler embedded with parallel plates
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] In the current investigation, a theoretical model predicting the temperature variation of ambient air flowing through an evaporative cooler embedded ...