Mechanical Engineering & Applied Mechanics: Recent submissions
Now showing items 21-40 of 143
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Influences of Seawater Flows on the Degradation of Organic Coatings Applied on Offshore Wind Turbines
(North Dakota State University, 2022)The regular protection methods of offshore wind structures consist of the application of two or three layers of epoxy-based coatings with a polyurethane topcoat. The coating systems of offshore wind turbines are mostly ... -
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 ... -
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 ... -
Numerical Methods for Fractional Optimal Control and Parametric Problems
(North Dakota State University, 2011)Fractional derivatives (FDs) or derivatives of arbitrary order have attracted considerable interest in the past few decades, and almost every field of science and engineering has applications of fractional derivatives. ... -
A Review of Flow Diagnostic Methods and Applications
(North Dakota State University, 2023)This work provides an overview of common flow velocimetry and diagnostic techniques, including their working principles and the application of these techniques. Probe velocimetry techniques such as pitot tubes and hot wire ... -
Process Optimization of 3D Printing with Continuous Fiber Reinforced UV Curable Thermoset Resin
(North Dakota State University, 2022)3D printed polymer components cannot be used as structural components due to the 3D printable material property limitations. To improve mechanical properties, a composite 3D printer is developed and studied. Technical ... -
A Review of Biomechanics of Arterial Stent Implants
(North Dakota State University, 2022)This work looks to provide a review of modern stents by evaluating the need for them as well as providing a detailed engineering analysis of the conditions they are subjected to. It is estimated that over two million of ... -
Increasing Cotton Product/Waste Value Through New Use Development
(North Dakota State University, 2021)Cotton products have been used for centuries with relatively low value and their ubiquitous use generating large quantities of waste materials. This research’s goal was to develop new uses for waste cotton fiber and ... -
The Effects of Surface Roughness on the Functionality of Titanium Based Alloy Ti13Zb13Zr Orthopedic Implants
(North Dakota State University, 2021)In this study, the effects of surface roughness on the wettability, cell attachment, and mechanical properties of titanium-based Ti13Nb13Zr orthopedic implants have been investigated. The aim of this multidisciplinary ... -
Simulation-Based Optimization and Artificial Intelligence Techniques for Macromechanical and Micromechanical Characterization of Soft Biological Tissues
(North Dakota State University, 2021)Traumatic brain injury (TBI) is a serious health and socioeconomic issue which affects thousands of lives annually in the United States. Computational simulations play an important role in better understanding of the TBI ... -
Dynamic Stall Characteristics of Pitching Finite-Aspect-Ratio Wings
(North Dakota State University, 2021)In this study, an experimental investigation was performed to characterize the dynamic stall of pitching wings and provide confirmation of the existence of the arch-shaped vortex for moderate sweep wing. Dynamic stall is ... -
Experimental Studies of Pulsatile Flow Characteristics of Aortic Models under Normal and Diseased Conditions
(North Dakota State University, 2021)Heart disease is the leading cause of death globally. Aorta is extremely important because of its critical function in blood circulation. Abnormal hemodynamics of aortic valve and arch is related to many severe diseases ... -
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 ... -
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 ... -
Short Glass Fiber Reinforced Composites Manufactured by Stereolithography
(North Dakota State University, 2021)The effectiveness of manufacturing short glass fiber composites using stereolithography (SLA) was investigated. Modifications were made to a standard SLA printer to induce a flow field through the resin tank. In this study ... -
Experimental Investigation of Shear Thickening Fluid Impregnated Flax Fabric and Flax/Kevlar Hybrid Fabrics
(North Dakota State University, 2020)Shear thickening fluids have the potential to improve the effectiveness of fabric materials in body armor applications as they have shown to increase the puncture and ballistic resistance of Kevlar fabrics. However, the ... -
Experimental Studies of Pulsatile Flow Passing Side Wall Biological Cavities and Flow Enhancement Using Hydrophobic Surfaces
(2020)Understanding the hemodynamics of the cardiovascular system and associated diseases is important for mitigating health risks. We applied flow diagnostic techniques to investigate pulsatile flow characteristics past sidewall ... -
Experimental Investigation of Molten Salt Torrefaction and the Development of a Lab-Scale Torrefaction Methodology
(North Dakota State University, 2019)A novel torrefaction methodology using molten salts as a means to reduce torrefaction temperatures was investigated. A lab-scale molten salt torrefaction methodology was developed to consistently torrify biomass; involving ... -
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. ...