• Adaptive highly flexible multifunctional wings for active and passive control and energy harvesting with piezoelectric materials 

  Tsushima, Natsuki (University of Alabama Libraries, 2017)

  The purpose of this dissertation is to develop an analytical framework to analyze highly flexible multifunctional wings with integral active and passive control and energy harvesting using piezoelectric transduction. Such ...
• A model of thermal aging of hyper-elastic materials with an application to natural rubber 

  Korba, Ahmed G. (University of Alabama Libraries, 2017)

  Understanding the degradation of material properties and stress-strain behavior of rubber-like materials that has been exposed to elevated temperature is essential for rubber among components design and lifetime prediction. ...
• Sociocultural HIV risk knowledge and behavior among female African-American adolescents and emerging adults in the southeast 

  Thomas, Martina (University of Alabama Libraries, 2016)

  The aim of this study is to determine sociocultural influences of HIV risk knowledge and behavior among African-American adolescent and emerging adult women in Tuscaloosa, Alabama. Bridging multiple worlds, cultural ...
• Effect of increased intracranial pressure on blood flow through cerebral arteries and aneurysms -a fluid-structure interaction study 

  Syed, Hasson Basha Quadri (University of Alabama Libraries, 2016)

  The pathological changes due to many cerebral diseases lead to increase in intracranial pressure (ICP), which is a life threatening condition especially in severe head injuries such as traumatic brain injury, hydrocephalus, ...
• Multiscale modeling of damage evolution in nanographene reinforced epoxy polymer using the Internal State Variable approach 

  Srivastav, Ankit (University of Alabama Libraries, 2015)

  The work done in this thesis aims to improve understanding of advanced multifunctional nanocomposite materials by developing physics-based multi-scale model of nanoparticle reinforced polymer matrix composites in order to ...
• The effect of butterfly-scale inspired patterning on leading-edge vortex growth 

  Wilroy, Jacob Aaron (University of Alabama Libraries, 2016)

  Leading edge vortices (LEVs) are important for generating thrust and lift in flapping flight, and the surface patterning (scales) on butterfly wings is hypothesized to play a role in the vortex formation of the LEV. To ...
• Control surface hinge moment prediction using computational fluid dynamics 

  Simpson, Christopher David (University of Alabama Libraries, 2016)

  The following research determines the feasibility of predicting control surface hinge mo- ments using various computational methods. A detailed analysis is conducted using a 2D GA(W)-1 airfoil with a 20% plain flap. Simple ...
• Concurrently coupled multiscale modeling of polymer nanocomposites 

  Li, Shibo (University of Alabama Libraries, 2016)

  Embedded statistical coupling method (ESCM) was originally developed to provide computational efficiency, to decrease coupling complexities, and to avoid the need to discretize the continuum model to atomic scale resolution ...
• Multiscale characterization and modeling of progressive failure in nano-graphene reinforced carbon/epoxy composites 

  Kumar, Abhishek (University of Alabama Libraries, 2016)

  This dissertation studies the dispersion of nano graphene platelets in thermoset epoxy polymers for improving the mechanical and hygrothermal properties of nano composites and carbon fiber laminates. Barrier properties of ...
• Design of a dual-expander aerospike nozzle rocket engine 

  McVay, Eric Stephen (University of Alabama Libraries, 2016)

  The University of Alabama’s Aerospace Engineering and Mechanics Department is developing a computational dual-expander aerospike nozzle (DEAN) upper stage rocket engine to demonstrate the engine’s performance capabilities ...
• Aerodynamic comparisons of membrane wings with cambered and flat frames at low reynolds number 

  Wrist, Andrew Harley (University of Alabama Libraries, 2016)

  The limited size of micro air vehicles (MAVs) requires small power sources, leading to a need for high aerodynamic efficiency. Flexible membrane wings at the MAV scale can experience improved lift/drag ratios, delays in ...
• An investigation of the performance potential of a liquid oxygen expander cycle rocket engine 

  Stapp, Dylan Thomas (University of Alabama Libraries, 2016)

  This research effort sought to examine the performance potential of a dual-expander cycle liquid oxygen-hydrogen engine with a conventional bell nozzle geometry. The analysis was performed using the NASA Numerical Propulsion ...
• Design and testing of a high data rate instantaneous laser doppler velocity probe 

  DeSio, Charles Vincent (University of Alabama Libraries, 2015)

  An Instantaneous Laser Doppler Velocimetry (ILDV) probe is designed, built, and tested. The probe is capable of measuring a single component velocity data at a rate as high as two megahertz. The probe can be employed in ...
• Vibration suppression of rotating beams through piezoelectric shunt circuits 

  Powell, Preston Carl (University of Alabama Libraries, 2016)

  This thesis analytically investigates the feasibility of passive vibration damping of a rotating beam-like structure, such as a helicopter rotor, through the use of piezoelectric materials. Piezoelectric materials are ...
• Estimation of morphing airfoil shapes and aerodynamic loads using artificial hair sensors 

  Butler, Nathan Scott (University of Alabama Libraries, 2015)

  An active area of research in adaptive structures focuses on the use of continuous wing shape changing methods as a means of replacing conventional discrete control surfaces and increasing aerodynamic efficiency. Although ...
• Experimental analysis of diffuser performance 

  Miller, Devon C. (University of Alabama Libraries, 2015)

  This research is driven by the desire to improve efficiency of the Subsonic Aerodynamic Research Laboratory (SARL) at the Wright-Patterson Air Force Base, Dayton, OH. Previous research indicates a 30% loss of pressure ...
• Water quench thermal fatigue analysis of grade p22 and grade p91 steels 

  Appling, William (University of Alabama Libraries, 2015)

  Power plants and other facilities that utilize high temperature steam flow have been using corrosion-resistant steels with high creep-rupture strengths in their piping systems. Fatigue crack failures have occurred in these ...
• A novel damage index for fatigue damage detection in a laminated composites using lamb waves 

  Seki, Daigo (University of Alabama Libraries, 2015)

  A well-established structural health monitoring (SHM) technique, the Lamb wave based approach, is used for fatigue damage identification in a laminated composite. A novel damage index, ‘normalized correlation moment’ (NCM) ...
• Intake flow analysis of a pulsed detonation engine 

  Strafaccia, Joshua Amadeus (University of Alabama Libraries, 2014)

  A CFD program is converted and modified to explore unsteady flow within the intake system of a pulse detonation engine (PDE). Using a quasi-one-dimensional approach the program provides insight into the unsteady nature of ...
• A multiscale analysis of blast impact mitigation on the human head 

  Jenson, Daniel Bryan (University of Alabama Libraries, 2014)

  The effectiveness of helmets in preventing shrapnel wounds and internal damage due to blast shock waves has been studied. Carbon nanotubes and similar nanostructures have also recently generated heightened interest due to ...

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