Theses and Dissertations
A COMPARISON OF DUCTILE AND BRITTLE MATERIAL FAIL CHARACTERISTICS IN RESPONSE TO TENSILE AND CYCLIC LOADING
(Monterey, CA; Naval Postgraduate School, 2022-12)
Understanding when a material will fail is of utmost importance to the military. Fail characteristics of emerging materials like composites are not well known. Additionally, the understanding of how composites compare to ...
SIMULATION AND VALIDATION OF COMPOSITE FLUID STRUCTURE INTERACTIONS
(Monterey, CA; Naval Postgraduate School, 2022-12)
As the U.S. Navy’s use of composite materials in marine structures expands, the material’s response to dynamic loading, especially that from underwater explosions, is becoming more vital to understand. To improve this ...
FAILURE OF BOLT FASTENED BRITTLE MATERIALS
(Monterey, CA; Naval Postgraduate School, 2022-12)
Since the early twentieth century, a substantial number of models, theories, and computational methods have been developed to predict material failure in brittle and quasi-brittle materials. In most cases, the proposed ...
MECHANICAL PROPERTIES OF NANO BORON NITRIDE AND MICRO BORON CARBIDE REINFORCED ALUMINUM COLD SPRAY COATINGS
(Monterey, CA; Naval Postgraduate School, 2022-12)
With regards to cold spraying, wear resistant metal coatings reinforced with boron nitride nanotubes (BNNTs) have remained unexplored when compared to carbon nanotube-based composites. Using commercially pure aluminum ...
ADDITIVE MANUFACTURING HOLLOW METAL PARTS WITH LIQUID METAL
(Monterey, CA; Naval Postgraduate School, 2022-06)
Liquid-metal additive manufacturing is a new technology whose limits have not been fully tested. Unique molten-metal droplet printing allows for new metal structures to be made that cannot be built with traditional ...
ENHANCING MECHANICAL PROPERTIES OF COLD-SPRAYED ALUMINUM COATINGS USING GRAPHENE-NANOPLATELET AND MICRO-BORON-CARBIDE REINFORCEMENTS
(Monterey, CA; Naval Postgraduate School, 2022-06)
This study explores the individual and combined reinforcement effects of graphene nanoplatelets (GNP) and micro-boron carbide (µB4C) in cold-sprayed Al matrix composite coatings. High energy ball milling was used to create ...
STUDY OF COMPOSITE MATERIAL FAILURE UNDER TENSILE AND CYCLIC LOADING
(Monterey, CA; Naval Postgraduate School, 2022-03)
Composite structures continue to gain popularity in engineering applications as they offer great strength to weight ratios, design flexibility and can last a long time. However, they are not exempt from catastrophic failure ...
TEMPERATURE AND BIOME EFFECTS ON PROACTIVE GROOMING FREQUENCIES FOR MARINE HULL COATINGS
(Monterey, CA; Naval Postgraduate School, 2022-03)
Grooming of marine anti-fouling (AF) and fouling release coatings (FRCs) has previously been shown to have many economic and environmental benefits when compared to reactive cleaning. However, existing data sets for U.S. ...
TENSILE AND FATIGUE FAILURE OF GLASS AND CARBON FIBER BUNDLES
(Monterey, CA; Naval Postgraduate School, 2022-03)
The use of composite materials in naval applications has been increasing, primarily due to their high strength-to-weight ratio. However, additional study is needed on the impact of cyclic loading on these materials. The ...
USE OF ARTIFICIAL FIDUCIAL MARKERS FOR USV SWARM COORDINATION
(Monterey, CA; Naval Postgraduate School, 2022-12)
Typical swarm algorithms (leader-follower, artificial potentials, etc.) rely on knowledge about the pose of each vehicle and inter-vehicle proximity. This information is often obtained via Global Positioning System (GPS) ...
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