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 7 of 7 for “"Active Composite"”.
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Transport and damage in hydrated coatings – a model soft active composite material
Active materials are solids which cyclically absorb and release large quantities of mass and/or energy, and encompass a wide variety of materials including lithium ion battery anodes and biological matter. Four interrelated fundamental processes – transport, volume change, stress, and damage – are …
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Microtransfer printing of elastomeric active composites
Soft active polymeric composites are of great interest in many fields, including soft robotics, flexible electronics, and wearable technologies. This kind of 3D heterogeneous integration of different materials to form a functional membrane is achieved through a novel fabrication process that …
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Active control of radiated noise from a cylindrical shell using external piezoelectric panels
… to cover the shell's outer surface with curved active composite panels, and to reduce the radiated noise by controlling the motion of each panel's outer surface (i.e., the radiating surface), instead of the shell's outer surface. The use of external piezoelectric panels proposed in this thesis …
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Active fibre-reinforced composites with embedded shape memory alloys
This dissertation concerns active fibre-reinforced composites with embedded shape memory alloy wires. The structural application of active materials allows to develop adaptive structures which actively respond to changes in the environment, such as morphing structures, self-healing structures and …
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Advanced instrumented stamps for micro transfer printing and novel application areas
… geometry stamps. Starting from the concept of an active composite material with distributed sensing, actuation and compliance tuning, new stamp architectures are developed. These novel stamps replace the compliance of a bulk PDMS stamp with active functional structures with tunable stiffness; …
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Design, manufacturing, and testing of an active twist rotor
An Active Twist Rotor (ATR) is developed for future implementation of the individual blade control for vibration and noise reduction in helicopters. The rotor blade is integrally twisted by direct strain actuation using active fiber composites (AFC). In order to design and analyze an active blade, …
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Redox-active materials for electrochemically-mediated separations
… Electrochemical approaches are an attractive alternative due to the innate propensities of redox-active species for modular design, molecular recognition, reversible operation, and lower energetic requirements, all of which can be realized via only electrochemical stimuli without any …