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Microstructural effects on fracture behavior of particulate composites: Investigation of toughening mechanisms using optical and boundary element methods
(2008-09-09)
Particulate polymer composites are used in a variety of engineering applications. These are generally two phase materials with polymeric phase reinforced by a filler phase to improve overall mechanical, thermal and/or ...
Experimental Investigation of Cavity Induced Two Phase Flow in Silicon Microchannels
(2008-09-09)
Modern developments in microelectronics manufacturing and architecture continue to lead to reductions in feature sizes on microprocessor chips. The demand for faster and more powerful systems has approached the limits of ...
Experimental And Analytical Investigation Of A Dynamic Gas Squeeze Film Bearing Including Asperity Contact Effects
(2008-09-09)
This thesis presents a theoretical and an experimental investigation of planar gas squeeze film bearings. The thickness and pressure profile of the gas squeeze film are obtained by simultaneously solving the Reynolds ...
Numerical Simulations of Boiling in Dielectric Fluid Immersion Cooling Scenarios of High Power Electronics
(2014-04-28)
As server technologies have progressed, the traditional methods of blade level cooling have become very costly. Up to this point, most server units have been cooled through forced air convection; a process that requires ...
High Speed Videographic Quick Stop Device for Orthogonal Machining
(2013-12-04)
Advances in digital high speed video acquisition make it possible to create a fully integrated virtual quick stop device to observe the orthogonal metal cutting process in real time. This research aims to provide additional ...
Guidance of an Off-Road Tractor-Trailer System Using Model Predictive Control
(2013-11-08)
This thesis presents an effort to improve the path following reliability of a tractor-trailer system by using a non-linear Model Predictive Control (MPC) approach. The proposed method allows an autonomous mobile robot to ...
Fracture Behavior of Particulate Polymer Composites (PPCs) and Interpenetrating Polymer Networks (IPNs): Study of Filler Size, Filler Stiffness and Loading Rate Effects
(2013-07-11)
Particulate Polymer Composites (PPCs) generally consist of nano- or micro-fillers of various sizes and shapes randomly dispersed in a polymer matrix. Introduction of second phase fillers of different stiffness and alteration ...
An Empirical and Computational Investigation into the Acoustical Environment at the Launch of a Space Vehicle
(2013-12-04)
During the launch of a space vehicle, the intense sound pressure levels created around the vehicle can excite the vehicle itself, payload, launch tower, and ground support systems into hazardous and potentially damaging ...
Molecular Dynamics Simulations of Dry Sliding Asperities to Study Friction and Frictional Energy Dissipation
(2014-03-31)
Fundamental friction characteristics such as the friction coefficient, wear, adhesion, and dissipation of energy require an accurate understanding of how the surfaces in contact interact on nano or atomic scale. At nano ...
Detection and Removal of Erroneous GPS Signals Using Angle of Arrival
(2013-11-08)
In this thesis, an algorithm for detecting multipath and spoofed GPS signals based on signal angle of arrival (AOA) is developed. As the first step in determining the AOA of the signals, a multi-antenna array of GPS antennas ...