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 20 of 31 for “"Additive Manufacturing techniques"”.
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Design of low cost biomimetic flexible robots using additive manufacturing techniques
… I designed and fabricated robots leveraging additive manufacturing. This had two overarching purpose. One to make a testing apparatus that would allow the measurements of the influence of a flexible flapping foil onto a subsequent, in-line, foil with the optic of researching optimized …
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Application of Novel Additive Manufacturing Techniques for Cost Reduction in Space Launch Vehicles
Additive Friction Stir Deposition (AFSD) is a new type of Additive Manufacturing (AM) capable of high-rate deposition of aerospace aluminum. AFSD overcomes some drawbacks of other AM processes while still benefiting from an expanded design space and alternative sourcing options. AFSD is promising …
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Analysis of sinter-based additive manufacturing techniques for the sustainable production of objects for the fashion industry
L'abstract è presente nell'allegato / the abstract is in the attachment
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Additive Manufacturing for Phase Change Thermal Energy Storage and Management
… spikes while maintaining a constant temperature. Additive manufacturing techniques hold tremendous potential to enable co-optimization of material properties and device geometry, while potentially reducing material waste and manufacturing time. Recently, a few efforts have emerged that employ …
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Additively Manufactured Flexible Piezoelectric Wave-Based Multifunctional Sensor
… enhanced piezoelectric properties using additive manufacturing techniques that can detect mechanical strains and gas or volatile organic compounds (VOCs) by incorporating functional material into the sensing layer. This research explores piezoelectric substrate fabrication through diverse …
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Additive manufacturing of triply periodic minimal surface informed load bearing stiffness matched tibial bone scaffold
… support. The research employs advanced additive manufacturing techniques, specifically Laser Powder Bed Fusion (L-PBF), to produce complex TPMS geometries with precise control over porosity and mechanical properties. The surrogate model developed in this thesis can be used-defined to …
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Dynamic and Post-Dynamic Microstructure Evolution in Additive Friction Stir Deposition
Metal additive manufacturing stands poised to disrupt multiple industries with high material use efficiency and complex part production capabilities, however many technologies deposit material with sub-optimal properties, limiting their use. This decrease in performance largely stems from porosity …
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DESIGNING MECHANICAL METAMATERIALS FOR INDUSTRIAL APPLICATIONS
… methodology for designing, optimizing, and manufacturing mechanical metamaterials for industrial applications. Building upon recent theoretical advances in mechanical metamaterials—structures that derive their properties from geometric design rather than chemical composition—the research …
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Strategies to design and optimize natural polymers as biomaterial inks for musculoskeletal tissue engineering applications
… advanced fabrication technology which exploits additive manufacturing techniques to develop scaffolds with precise spatial control for biomedical applications. Among the existing technologies, extrusion-based bioprinting gained an increased interest in fabricating complex tissue constructs due …
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Design of a Proprioceptive Actuator Utilizing a Cycloidal Gearbox
… was also optimized to be made using low-cost additive manufacturing techniques rather than relying on conventional machining.</p>
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Design, Fabrication, and Experimental Investigation of an Additively Manufactured Flat Plate Heat Pipe
… vaporization-condensation cycle begins again. Additive manufacturing techniques allow for manufacturing complex parts that are typically not feasible with conventional manufacturing methods. Thus, additive manufacturing opens the possibility to develop high performance heat pipes with complex …
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Materials and processes for the optical additive manufacturing of advanced organic/inorganic nanocomposites for the mask-less plating of insulator and semiconductor substrates, and microfluidic devices
… by the need to find new strategies for the Additive Manufacturing (AM) and to obtain new processable nanocomposites with enhanced properties. The AM technologies allow to build 3D objects with complex geometries by adding layer-upon-layer of material without any mold and permits to fabricate …
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Additive Manufacturing Organic Neuromorphic Devices and Neural Networks
… adaptable and scalable digital fabrication techniques. In this thesis, a study of low-cost additive manufacturing techniques to fabricating neuromorphic OECTs and neural networks is carried out. Three major findings are presented in this thesis. First, it is shown that the manufacturing of …
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DESIGN AND DEVELOPMENT OF BIOFIDELIC SIMULATION TRAINERS FOR PEDIATRIC KNEE EFFUSION ASSESSMENT
… biofidelic training models using small-scale manufacturing techniques. The problem addressed was clinicians' lack of exposure to pediatric populations and opportunities to practice the patellar tap test. The tap test is a subjective physical examination prone to error, especially in overweight …
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Selective laser sintering of bioactive glass scaffolds and their biological assessment for bone repair
… scaffold fabrication using powder-bed based additive manufacturing techniques, like the selective laser sintering (SLS) process, provides control over pore interconnectivity, pore geometry, and the overall shape of the scaffold, which aids in repairing different regions of the bone. The main …
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Numerical and experimental investigation of composite heat pipe technology
… specific (per unit mass) performance and reduce manufacturing cost, we present here a concept for a composite heat pipe that utilizes different materials for the adiabatic and evaporator/condenser sections. Such composite heat pipes can be fabricated with low cost materials, while maximizing …
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Thermo-mechanical characterisation of energetic materials for additive manufacture
This thesis presents an investigation of the additive manufacture of energetic materials such as polymer bonded explosives and composite propellant. The work focuses on the use of extrusion methods to print the materials as uncured pastes comprising a high volume fraction of solid energetic …
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Inline Coherent Imaging of Laser Additive Manufacturing
Metal-based laser additive manufacturing techniques such as selective laser melting offer unique capabilities in the manufacture of geometrically complex metal components. The ability of these techniques to fabricate unique part designs of high-strength metals is of great interest to advanced …
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A calibrated dual-port acoustic Vector Network Analyser
… repeatability. Several materials were used with additive manufacturing techniques to create couplers and waveguide sections, each with its own advantages. Titanium (Ti64) offered the best usability and reliability, while plastic offered better repeatability. Calibration was a major advance in the …
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Fatigue and Fracture of Electron Beam Melting Ti-6Al-4V
… With the ongoing advancements in metallic additive manufacturing techniques and the interest in applying the process to aerospace applications, there is a clear need to fully characterize properties. Arguably, the most attractive alloy for applications in aerospace is the Ti-6Al-4V alloy. …
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