Theses/Dissertations - Mechanical Engineering
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Internal fiber orientation measurements and void distribution for large area additive manufactured parts using optical and SEM imaging techniques.
(2021-08-10)The use of additively manufactured parts for industrial applications has grown is often limited by their structural performance and compromised thermal dimensional stability. The addition of carbon fiber reinforcements, ... -
Moment analysis methods of ultrasonic waveforms to characterize the internal temperature and melt transition boundary for materials with irregular porosity.
(2021-08-05)The utilization of acoustic measurements occurs frequently in a multitude of industries. Monitoring the internal thermal and phase states of materials is of particular interest to the petro-chemical, food, and polymer ... -
Nondestructive evaluation of out-of-plane wrinkles within woven carbon fiber reinforced plastics (CFRP) using ultrasonic detection.
(2021-08-10)In the automotive and aerospace industries composite materials are heavily utilized as they provide a great strength to weight ratio relative to their metallic counterparts. A drawback is they require complex manufacturing ... -
The influence of vapor pressure on droplet contact dynamics on smooth surfaces.
(2021-07-14)Droplet impact experiments were performed with different fluids using Total Internal Reflection Microscopy (TIRM) on a smooth surface to gain insight into the mechanism for the air film failure of volatile liquids. Several ... -
Evaluating a commercially available, immersive virtual reality system for measuring common lower body rehabilitation motions.
(2021-05-04)Lower body rehabilitation has been marked by qualitative assessments and observations. Quantitative measuring devices often present a financial burden that many clinics cannot overcome. Virtual Reality (VR) systems offer ... -
Numerical and theoretical study of natural oscillations of supported drops with free and pinned contact lines.
(2021-04-19)The oscillation of drops supported by solid surfaces is important to a wide variety of applications, such as dropwise condensation. Identification of the natural frequencies of supported drops of different sizes and liquids ... -
Assessing precision and application of marker placement device to enhance motion capture studies.
(2020-11-13)Motion capture has become an important clinical tool used in applications of therapy and treatment plans as well as surgical evaluations. However, due to factors such as human error, having multiple examiners, and using ... -
Aerodynamic and aeroacoustic design of small unmanned aircraft system propellers at low Reynolds numbers.
(2020-11-19)The Small Unmanned Aircraft System (sUAS) has become an overwhelmingly important asset for military intelligence, surveillance, and reconnaissance in addition to a multitude of needs in the commercial industry. More research ... -
Evaluation of structural behavior using constituent material properties and finite element analysis for large format fiber reinforced composites made from recycled polymers.
(2020-12-03)Recycling of polymers is of great interest to society with industry and government focusing on new applications to reduce waste generation. Most polymers have low modulus and strength compared to metals, and based on the ... -
Ideation, validity, and practicality of using virtual reality to conduct the Wolf Motor Function Test for upper limb stroke patients.
(2020-11-13)In this study, 11 subjects between the ages of 19 and 35 years old performed tasks selected from the official Wolf Motor Function Test (WMFT) – Hand to Table, Hand to Box, and Lift Can. Subjects performed the tasks in ... -
Investigating the impact of interacting with real world objects in virtual environments.
(2020-11-19)Virtual reality (VR) systems allow users to be fully immersed in a virtual world. Incorporating physical objects such as stairs in to virtual reality could provide better immersion and create new uses for these systems. ... -
Convection measurements in scale models of additively manufactured turbine blade cooling passages.
(2020-11-12)High pressure gas-turbine blades and components are typically constructed with interior cooling air passages. Additive manufacturing processes, such as direct metal laser sintering (DMLS), enable creation of novel turbine ... -
High-fidelity simulation of liquid atomization in quiescent environment and supersonic flows.
(2020-09-24)The atomization of liquid fuel in both quiescent environment and supersonic flows is essential to a wide variety of applications. Since it is challenging to obtain high-level details of the time-dependent, 3D, and chaotic ... -
Quantifying physiological and neurological responses to organic motion patterns.
(2020-07-29)The human body was designed to move, and the benefits of exercise and an active lifestyle are well known. However, many individuals live with neuromuscular conditions that limit movement and quality of life. One treatment ... -
X-wire investigation of turbulent flow in simulated additively manufactured turbine blade cooling channels.
(2020-02-03)Gas turbine blades may be additively manufactured (AM) using processes such as direct metal laser sintering (DMLS) to create more complex shapes and produce more effective cooling than otherwise feasible with traditional ... -
Development of a dynamic human body phantom model for on-body electromagnetic wave propagation and antenna radiation study.
(2020-03-27)Wireless body area network (WBAN) technology has many valuable applications including long-term, remote health monitoring for the general population, the military, and athletes. A key challenge for practical realization ... -
A study of frost growth and roughness on a cold flat plate under forced convection.
(2020-03-19)The growth and roughness of frost formed on a cold flat plate under forced convection was characterized through experimental observations and analysis. The results indicated that the evolution of frost roughness was mainly ... -
Nondestructive inspection and quantification of carbon fiber laminates for barely visible impact damage and adhesive layer thickness measurements.
(2020-04-08)Carbon fiber laminates are used extensively across numerous industries. Their high strength to weight ratio allows for weight savings over metallic alternatives without compromising structural integrity. The layered structure ... -
Human kinematic responses to walking and riding camels and horses.
(2020-04-28)Hippotherapy is a novel and promising therapeutic method. The prevailing rationale for hippotherapy is that the motion of a horse can provide movement patterns that mimic those of walking. The purpose of this study is to ... -
Topology optimization of weakly coupled thermomechanical systems for additive manufacturing.
(2019-11-19)Topology optimization is a design optimization method that generates structures with complex geometries that are ideally suited for additive manufacturing. Most additively manufactured structures have anisotropic material ...
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