Mechanical Engineering & Applied Mechanics Masters Theses
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Effects of processing parameters and thickness on compression-molded PET/GF composites
(North Dakota State University, 2024)Polymer-matrix composites (PMCs) have become an integral material in many industries due to excellent strength-to-weight ratio and low cost. When semi-crystalline polymer thermoplastics, such as polyethylene terephthalate ... -
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 ... -
Stress-function variational method for stress and progressive cracking analysis of polymer composite laminates
(North Dakota State University, 2024)Polymer matrix composites (PMCs) are widely used in various industries, including aerospace, vehicles, sports utilities, and civil infrastructures. Understanding the failure process and mechanisms of PMCs subjected to ... -
Experimental Characterization of a Novel Integrated Flow Control Method
(North Dakota State University, 2010)Flow control methods can be used in many areas of aerodynamics such as separation control, wind turbines, landing gears and micro satellites. Flow separation in the boundary layer is one of the fundamental problems of ... -
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 ... -
Impact. of Environmental Conditions on Fiberglass-reinforced Polyurethane Foam Composites
(North Dakota State University, 2010)Incorporating reinforcement within a polymer (i.e. composite) can obtain substantial performance increases. However, composites may he susceptible to conditions that could have a significant impact on their performance. ... -
Implementation Of Particle Model Control Approach To A Fixed Axle UGV
(North Dakota State University, 2010)Robotic vehicles are normally modeled as rigid bodies under general motion, combining translation and rotation motions. While such modeling results in motion controllers that are easy to implement, these controllers are ... -
Performance Prediction Model for a Hybrid PVT System
(North Dakota State University, 2010)Photovoltaic cells convert, depending on the cell type, 6-18% of the incoming solar radiation into electricity with a higher percentage converted into heat. The heat in turn affects the cell temperature which has direct ... -
Foaming Kinetics of Closed Cell Rigid Polyurethane Foam
(North Dakota State University, 2010)Rigid polyurethane foams have shown promise in several applications as a means to reduce weight without compromising structural properties. Information about the chemical formula of the liquid components, the reaction ... -
Experimental Study of Effects of Leading-Edge Structures on the Dynamic Stall of a Vertical Axis Wind Turbine Airfoil
(North Dakota State University, 2020)Vertical axis wind turbine, developed as one of the main methods to utilize the wind energy, has a promising future; however, the major issue to limit its performance is the uneven loading on the blade during operation. ... -
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 ... -
Numerical Simulation of a Direct Expansion Geothermal Heat Pump Using Carbon Dioxide in a Transcritical Cycle
(North Dakota State University, 2011)Many of the synthetic refrigerants used in heat pump and air conditioning systems are potent greenhouse gases. In light of the increasing concern regarding climate change, there has been an increased interest in natural ... -
Performance Analysis of an Advanced Emission Reduction Technology Engine During Diesel-Hydrogen Dual Fuel Operation
(North Dakota State University, 2011)The primary objective of this study was to determine the capability of a CAT engine controlled by an advanced combustion emission reduction technology (ACERT) electronic control module to operate in a dual fuel mode. A ... -
A Molecular Dynamics Study of Mechanical Properties of Carbon Nanotube Polymer Composites and Graphene Nanoplatelet Polymer Composites
(North Dakota State University, 2010)Carbon nanotubes have been the main focus in science and engineering fields lately for their extraordinary properties. But carbon nanotube fabrication process is very expensive, particularly for reinforcements and ... -
An Experimental Study of Fluid-Structure Interaction in Collapsible Vessels
(North Dakota State University, 2022)The fluid-structure interaction in collapsible thin-walled vessels is an important topic of research to better understand the physical mechanisms behind many physiological processes and diseases. In this work, we established ... -
Regolith Based Polymer Matrix Composites for In-Situ Additive Manufacturing for Long Term Extraterrestrial Missions
(North Dakota State University, 2022)The completed study investigated Martian regolith simulant composites’ material properties when there was variation in the type of used Martian regolith simulant. Four types of Martian regolith simulant were mixed at varying ... -
Stress-Function Variational Method and Its Applications in the Strength Analysis of Bonded Joints and Hard Coatings
(North Dakota State University, 2011)High concentrations of interfacial stress near the adherend ends are primarily responsible for the debonding failure of bonded joints, such as those structured extensively in civil and structural engineering; aeronautical, ... -
Potential for Industrial Vehicle Electrical Applications
(North Dakota State University, 2011)Synthetic metals are a branch of material science that deals with conducting organic molecules. The quantum mechanics of these materials show that doping can fundamentally change the conduction method and significantly ... -
A Numerical Study and Optimization of a Morphing and Pitching Boeing Vertol VR-12 Rotorcraft Airfoil
(North Dakota State University, 2022)The helicopter blade has not undergone any major change in design in recent history, only minor adjustments like swept blade tips, variable twist blade, and application of small gurney flap style trailing edge devices. ... -
An Investigation on Residual Stress Build-Up in Cold Sprayed Metallic Samples: Effect of Stress Relaxation Heat Treatment
(North Dakota State University, 2022)Residual stress formation during cold spraying process may result in deteriorative effects on the performance of coating materials. The objective of this investigation is to characterize residual stress built-up in some ...
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