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 15 of 15 for “"multifunctional composite"”.
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Multifunctional composite structures with damage sensing capabilities
… and investigate promising routes for developing multifunctional composite structures with damage sensing capabilities towards the development of integrated non-destructive inspection (NDI) and structural health monitoring (SHM) capabilities. Two routes were identified and selected for further …
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Manipulation of Carbon Nanostructures for Multifunctional Composite Materials
Composite fibers comprised of 5:95 wt ratio of ultra-short single walled carbon nanotubes (US-SWCNT):polyacrylonitrile (PAN) were spun using a dry-jet wet-spinning method followed by oxidative stabilization at 285 °C. The as-spun and stabilized composite fibers exhibited a 50 and 40 % increase, …
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Development of next generation multifunctional composite structures for CubeSats, pico- and nanosatellites
L'abstract è presente nell'allegato / the abstract is in the attachment
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The design, analysis, construction, and testing of a multifunctional composite satellite structure
… variations in design, strength analysis of composite laminates, and determination of vibration modes and associated frequencies of tubular structures with anisotropic sandwich construction. Experimental work included the building of co-cured honeycomb panels, curved panels, and tubular …
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Polyethylene-Based Multifunctional Composite Material for Radiation Shielding, Passive Thermoregulation, and In-Situ Fabrication for Space Exploration
… This thesis presents a polyethylene-based multifunctional composite material aiming to achieve simultaneous space radiation attenuation, passive thermoregulation, and in-situ fabrication. The first component of the thesis explores the aspect of radiation shielding. While polyethylene is …
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Damping Behavior in Ferroelectric Reinforced Metal Matrix Composites
Ferroelectric-reinforced metal matrix composites (FR-MMCs) show promise as high damping materials for structural applications. Most structural materials are valued based on their stiffness and strength; however, stiff materials typically have limited inherent ability to dampen mechanical or …
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Understanding Ferroelastic Domain Reorientation as a Damping Mechanism in Ferroelectric Reinforced Metal Matrix Composites
Ferroelectric-reinforced metal matrix composites (FR-MMCs) offer the potential to improve damping characteristics of structural materials. Many structural materials are valued based on their stiffness and strength; however, stiff materials typically have limited inherent ability to dampen …
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Engineering diatom peptides for the synthesis of silica nanomaterials
… and synthesizing silica nanostructures and multifunctional composite nanomaterials under ambient conditions, with potential applications in biomedicine, electronics, and photonics.
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Fabricating Multifunctional Composites via Transfer of Printed Electronics Using Additively Manufactured Sacrificial Tooling
Multifunctional composites have gained significant interest as they enable the integration of sensing and communication capabilities into structural, lightweight composites. Researchers have explored additive manufacturing processes for creating these structures through selective patterning of …
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Instability-induced transformation of interfacial layers in composites and its multifunctional applications
… transformation in the microstructure of composites with thin interfacial layers. The hybrid microstructure of a composite material has an essential influence on the effective properties and behavior of the composite. Hence, in this research, the principles and mechanics of interfacial …
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Experimental Nanoengineering of Multifunctionality into an Advanced Composite Laminate
Advanced structural fiber composite materials have lightweight, multi-directional, and tailorable properties which are vital for weight-critical applications such as aerospace vehicles. Nanoengineered aerospace-grade composites have been developed to have integrated multifunctionalities while …
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PHOTO-GUIDED SHAPE TRANSFORMATION OF COMPOSITE HYDROGEL SHEETS
… approach to re-program shape-transformation of composite hydrogel sheet with homogeneously distributed silver nanoparticle. By modulating light irradiation pattern, the same hydrogel sheet transformed to multiple distinct geometries, which were verified by finite element method. Secondly, I …
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Simultaneous Energy Harvesting and Vibration Control via Piezoelectric Materials
… host structure. The motivating application is a multifunctional composite sandwich wing spar for a small Unmanned Aerial Vehicle (UAV) with the goal of providing self-contained gust alleviation. The basic idea is that the wing itself is able to harvest energy from the ambient vibrations along …
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Thermally-assisted frontal polymerization for rapid curing of fiber-reinforced polymer composites
Fiber-reinforced polymer composites (FRPCs) are widely used in a variety of applications owing to their excellent specific mechanical properties, chemical stability, and fatigue resistance. However, the state-of-the-art technologies for manufacturing FRPCs are intensive in terms of time and energy, …
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Nanomaterial-enabled manufacturing for next-generation multifunctional advanced composite prepreg laminate architectures
… of advanced aerospace-grade structural composites has traditionally utilized autoclaves to impart heat and pressure, in addition to vacuum, to create high-quality, void (defect)- free, reproducible structures. Carbon (micro) fiber reinforced polymer (CFRP) composites, which are …