Browsing Mechanical Engineering & Applied Mechanics Masters Theses by Title
Now showing items 1-20 of 106
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Additive manufacture of advanced composites using reactive resins and continuous carbon fiber
(North Dakota State University, 2024)To overcome the significant limitations such as slow processing times, substantial energy needs of conventional additive manufacturing technology, reactive extrusion additive manufacturing (REAM) process was developed. As ... -
Additive Manufacturing of Short-Fiber Composites via Stereolithography
(North Dakota State University, 2018)The effectiveness of using a dual curing system, consisting of a photo and thermal initiator, for the additive manufacturing of carbon fiber short-fiber composites via stereolithography was investigated. The necessary ... -
Advanced Measurements and Analyses of Flow Past Three-Cylinder Rotating System
(North Dakota State University, 2020)Interaction of flow structures from a three-cylinder system is complex and important for fundamental and engineering applications. In this study, experiments using hotwire, 2D PIV, and Tomography are to be conducted to ... -
Application of Cellulose Nanocrystals and Zinc Oxide as a Green Fire-Retardant System in High Density Polyethylene
(North Dakota State University, 2019)Polymeric materials are widely used in diverse applications. However, a major weakness in the majority of the thermoplastic polymers is their lack of ability to resist fire. Most of the chemicals and additives currently ... -
Assessment of Native Aortic Stenosis Hemodynamics and Clinical Evaluation Methods Using Steady State Computational Fluid Dynamics and Computed Tomography-Derived Geometry
(North Dakota State University, 2012)Aortic stenosis is the most common valvular heart disease with a prevalence of 2% among individuals over 65 years and 4% over 80, in developed countries. Accurate valve assessment for intervention timing is critical. Using ... -
Atomic Force Microscopy-Based Nanomechanical Characterization of Kenaf Microfiber and Cellulose Nanofibril
(North Dakota State University, 2021)Kenaf fiber is increasingly getting the attention of the industries due to its excellent mechanical properties, feasibility, growth rate, and ease of cultivation. On the other hand, cellulose nanofibril is one of the ... -
Best Practices in Computational Fluid Dynamics Modeling of Cerebral Aneurysms using ANSYS CFX
(North Dakota State University, 2015)Today many researchers are looking toward computational fluid dynamics (CFD) as a tool that can help doctors understand and predict the severity of aneurysms, but there has yet to be any conclusive proof of the accuracy ... -
Bioprinting of Pancreatic Cancer Cells for Improved Drug Testing
(North Dakota State University, 2019)Currently, many drugs are preclinically tested on two-dimensional cell cultures. However, this method does not adequately replicate the cellular interactions or diffusion gradient that occur in three-dimensional tissues, ... -
Characterization of a Lab-Scale Polymethylmethacrylate and Gaseous Oxygen Hybrid Rocket
(North Dakota State University, 2022)Hybrid rockets are a type of chemical rocket propulsion where the reactants are in different phases. Historically, hybrid rockets have been underutilized in the aerospace industry. However, due to their simple nature, they ... -
Characterization of Mechanical Properties in Hybridized Flax and Carbon Fiber Composites
(North Dakota State University, 2013)Natural fiber composites have been found to exhibit suitable mechanical properties for general applications. However, when high strength applications are required, natural fibers are typically not considered as a practical ... -
Characterization of Regenerated Silk Material for Biomimetic Spinning and Film Casting
(North Dakota State University, 2018)Natural silks produced by spiders and silkworms exhibit tailorable mechanical performance yet to be achieved synthetically. This phenomenon is derived from a biological system that has been evolutionarily optimized. In ... -
Characterizing the Operation of a Dual-Fuel Diesel-Hydrogen Engine near the Knock Limit
(North Dakota State University, 2014)A CAT C6.6 turbocharged diesel engine was operated in dual-fuel diesel-hydrogen mode. Hydrogen was inducted into the intake and replaced a portion of the diesel fuel. Hydrogen was added across multiple engine speeds and ... -
Computational Investigation of Low-Pressure Turbine Aerodynamics
(North Dakota State University, 2015)The design of today’s gas turbine engines is heavily reliant on accurate computational fluid flow models. Creating prototype designs is far more expensive than modeling the design on a computer; however, current turbulence ... -
Computational Simulation of Droplets Wetting on Micro and Nano Filaments
(North Dakota State University, 2010)In this thesis, wetting properties of liquid droplets on micro and nano filaments were explored. First, droplet-on-filament systems were considered, made of liquid droplets and wetting between parallel filaments of ... -
Computational Simulations of Compressible Transitional Flows in a Turbine Vane Cascade
(North Dakota State University, 2019)In order to improve the efficiency and reduce the emissions of aircraft engines, new combustor designs have been developed to reduce outlet temperatures and increase mixing. At high altitudes, the low pressure and low ... -
Computational Simulations of Flow Past a Rotating Arrangement of Three Cylinders Using Hybrid Turbulence Models
(North Dakota State University, 2020)Over the past 25 years, advances in the field of turbulence modeling have been made in an effort to resolve more scales, preserving unsteadiness within a flow. In this research two hybrid models, Scale-Adaptive Simulation ... -
Design and Control of a Micro/Nano Load Stage for In-Situ AFM Observation and Nanoscale Structural and Mechanical Characterization of MWCNT-Epoxy Composites
(North Dakota State University, 2017)Nanomaterial composites hold improvement potential for many materials. Improvements arise through known material behaviors and unique nanoscale effects to improve performance in areas including elastic modulus and damping ... -
Design and Fabrication of Micro-Channels and Numerical Analysis of Droplet Motion Near Microfluidic Return Bends
(North Dakota State University, 2019)Three-dimensional spheroid arrays represent in vivo activity better than conventional 2D cell culturing. A high-throughput microfluidic chip may be capable of depositing cells into spheroid arrays, but it is difficult to ... -
Development and Characterization of Reactive Extrusion Additive Manufacturing System and Polymer
(North Dakota State University, 2021)Additive manufacturing with polymers can rapidly produce complex geometry and prototypes but does not usually utilize thermoset polymers aside from photocurable polymers. In this study two-part reactive thermoset resin ... -
Development of an Advanced Composite Material Consisting of Iron Matrix Reinforced with Ultra High Temperature Ceramic Particulate (TiB2) with Optimum Properties
(North Dakota State University, 2016)This study was intended to investigate the mechanical properties and microstructure of iron based composite reinforced by ultra high temperature ceramics fabricated by powder metallurgy technique. The fabrication parameters ...