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Now showing items 21-27 of 27
A Study of the Effect of Various Material Combinations on the Bolted Contacts of Busbars
(2013-07-11)
The reliability of bolted joints is a concern for high-powered devices as the generated heat and thermal expansion could loosen the connections over many actuation cycles. There currently appears to be relatively little ...
Thermal Conductivity of Nanostructure-Enhanced Phase Change Materials: Measurements for Solid Eicosane-Based Copper Oxide and Carbon Nanotube Colloids and Numerical Modeling of Anomalous Measurements near Phase Transition
(2013-06-25)
In this thesis, thermal conductivity of eicosane-based nanostructure-enhanced phase change materials (NePCM) and modeling of the effectiveness of the widely-used transient hot wire (THW) apparatus near the liquid-solid ...
A Study on Forces, Tool Wear and Surface finish in Orthogonal Machining of Aluminum 6061 T6 alloy and AISI 1020 Steel with HSS and Uncoated Carbide tool inserts under different gaseous cutting environments
(2013-08-20)
The current study is a statistically designed Orthogonal tube turning experiment to evaluate different cutting environments that can be used in machining aluminum 6061 T6 alloy and AISI 1020 Steel alloy. Two different tool ...
Quasi 3D electrochemical and thermal modeling of lithium ion polymer battery in time and frequency domain and its validation
(2013-07-19)
A dynamic model for a pouch type Li-polymer battery based on electrochemical, thermal, and double layer principles is developed to analyze static and dynamic performances of a single cell. The model is built in three steps: ...
Solder Joint Reliability Based Prognostic Health Management (PHM) Models for Life Prediction of Electronics Subjected to Harsh Thermo-mechanical Environments
(2013-12-04)
Field deployed electronics may accrue damage due to environmental exposure and usage after finite period of service but may not often have any macro-indicators of failure such as cracks or delamination. In real world setting ...
Numerical Modeling of Random 2D and 3D Structural Foams Using Voronoi Diagrams: A Study of Cell Regularity and Compression Response
(2013-07-10)
Representing the complex morphology of cellular solids in general and metal foams in particular for understanding key factors governing their mechanical behavior is typically achieved using periodic unit cells. Due to the ...
Modeling and Reliability Characterization of Area-Array Electronics Subjected to High-G Mechanical Shock Up To 50,000G and Finite Element Analysis of Package on Package (PoP) Components for Warpage During Reflow
(2013-04-17)
Electronics in aerospace applications may be subjected to very high g-loads during normal operation. A novel micro-coil array interconnect has been studied for increased reliability during extended duration aerospace ...