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 14 of 14 for “"high-performance fiber"”.
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Multi-axial failure of high-performance fiber during transverse impact
… nose geometry on ensuing wave development in high-performance yarns is explored during single yarn transverse impact. Special attention has been placed on visualizing the immediate region around the projectile-yarn contact site for 0.30-cal round, 0.30-cal fragment simulation projectiles …
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Rapid manufacturing of high-performance fiber-reinforced polymer matrix composites
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Design and Installation of Ultra-High Performance Fiber Reinforced Precast Jackets for Retrofitting Concrete Piers
Ultra-high performance fiber-reinforced concrete (UHPFRC) has emerged in the last decade as a new alternative material for retrofitting reinforced concrete structures such as buildings and bridges. One of the most common applications of UHPFRC today is restoring bridge decks and construction …
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Structural behavior and modeling of high-performance fiber-reinforced cementitious composites for earthquake-resistant design
… this problem, the development and modeling of High Performance Fiber-Reinforced Cementitious Composites (HPFRCC) for use in key shear and/or moment regions of damage-critical structural concrete elements has been investigated. An experimental program was conducted to further understand the …
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Elastic and Thermoelastic Stresses in Biomedical Sensors and Bicomponent Fibers
The performance and structural integrity of polymeric systems are strongly influenced by elastic and thermoelastic stresses. This dissertation examines these stresses within a unified framework spanning two areas: the development of composite biomedical sensors and the analysis of bicomponent …
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Characterication of aggregate gland silk factor 1
<p>Spider silk is a high performance fiber with extraordinary mechanical properties, including high tensile strength and toughness. Due to these outstanding material properties, scientists are rapidly pursuing the production of synthetic spider silks for a variety of different applications. In …
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Residual Strength of Ultra-High Performance Concrete After Exposure to Elevated Temperatures
… on the compressive strength of <a></a><a>ultra-high-performance fiber-reinforced concrete </a>(<a>UHPFRC</a>). Two different mixtures of a commercially available UHPFRC were considered in this study. The standard mixture offered by the manufacturer incorporates only steel-fibers to improve the …
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The application of siloxane modified polyimides as high performance textile coatings
… copolymers were prepared and developed as high performance fiber coatings. These copolymers were synthesized and characterized extensively as a function of chemical composition. The polyimides were then utilized to coat prototype fibers which were subsequently evaluated regarding thermal …
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Self-Calibrated Interferometric/Intensity-Based Fiber Optic Pressure Sensors
… the objective of providing robust and reliable fiber optic pressure sensors capable of operating in harsh environments, this dissertation presents the detailed research work on the design, modeling, implementation, analysis, and performance evaluation of the novel fiber optic self-calibrated …
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Imaging, Mechanics, Construction, and Sonification of Three-Dimensional Spider Webs
… 3D webs. Silk’s microscale thickness and the highly complex spatial network are significant challenges towards quantifying and visualizing the intricate architectures, mechanics, and construction of 3D webs. In this work, we aim to provide a consistent and automated non-destructive in-situ …
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Structure and defects in high-performance aramid fibers
High performance aramid fibers, such as Kevlar, AuTx, and Twaron have been designed for ultra-high specific strength and stiffness. These fibers derive their superior properties from the high degree of molecular orientation that allows for efficient load transfer to the backbone covalent bond axis. …
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Performance of RC Columns Retrofitted with UHPFRC Jackets Under Cyclic Displacement Reversals
… experimental and analytical research, the performance of reinforced concrete columns with or without prior damage, after retrofitting with ultra-high-performance fiber-reinforced concrete (UHPFRC) jackets and subjected to cyclic loading that simulates earthquake effects. A series of …
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Estudio de estructuras aporticadas prefabricadas con uniones basadas en hormigones con fibras
… hor-migones con fibras de muy alta resistencia (High Performance Fibre Reinforced Cement Composites, HPFRCC) ha establecido una línea de investigación de gran dinamismo, en-focada principalmente a identificar aplicaciones que permitan el máximo aprovechamiento de las sobresalientes propiedades …
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Solvent-based self-healing approaches for fiber-reinforced composites
… over the the past decade, self-repair in fiber-reinforced composite materials presents significant technical challenges due to stringent manufacturing and performance requirements. For high performance, fiber-reinforced composites, the self-healing components need to survive high …