Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"carbon fiber-epoxy composite"”.
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Characterization and modeling of the effect of environmental degradation on flexural strength of carbon/epoxy composites
… for prediction of long-term durability of composites for emerging facilities in different climatic zones. The objective of the research was to develop a predictive tool using the Arrhenius principles adapted to the TTS (Time Temperature Superposition) to measure degradation of …
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Design and development of a novel lightweight long-reach composite robotic arm
… on exploring the feasibility of using polymeric composite materials for the construction of long-reach robotic arms. Different manipulator layouts were investigated and an ideal design was selected for a robotic arm that has a 5 [m] reach, 50 [kg] payload, and is intended to operate on large …
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Durability of Chopped FiberReinforced Polymeric Composites for use in Experimental Automotive Fuel Cells
… has lead to concerns regarding the durability of fiber reinforced polymer (FRP) composite materials. Automotive fuel cell power train systems must prove themselves as a reliable alternative to the combustion engines and automatic transmissions. The use of polymer composites in fuel cells to serve …
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Investigation of Zinc Oxide Nanowires for Impedance Based Structural Health Monitoring
… work is to investigate the piezoelectricity of composite laminates embedded with layers of zinc oxide (ZnO) nanowires. ZnO nanowire embedded composites have the potential to sense and actuate giving the potential for these smart composites to serve the function of being load bearing structures …
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Self-sealing of thermal fatigue and mechanical damage in fiber-reinforced composite materials
Fiber reinforced composite tanks provide a promising method of storage for liquid oxygen and hydrogen for aerospace applications. The inherent thermal fatigue of these vessels leads to the formation of microcracks, which allow gas phase leakage across the tank walls. In this dissertation, …
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Experimental investigation of the effects of imperfections on the behavior of composite scarf joints
… of the overall response and failure behavior of composite scarf joints to the details of their geometry. Three parameters, considered to be manufacturing imperfections that could occur during the repair process, are examined: a through-thickness offset between the two adherends, adherends of …
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The sensitivity of composite scarf joints to the height of the blunt tip
As advanced composites see increased use in military and commercial aircraft, there is a growing need to understand the structural behavior of these composite structures after repair. In this work, a numerical and experimental investigation was conducted to characterize the sensitivity of the …
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Manufacture of Complex Geometry Component for Advanced Material Stiffness
… This is validated with experimental results of composite parts, which refine material properties for use in a final prototype part model. The secondary goal of this project is to explore manufacturing methods for improved manufacturability of the complex part. The manufacturing portion of the …