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 11 of 11 for “"fatigue-resistant"”.
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Development and validation of a fatigue-resistant cladding technology
… resulting due to the applied joining process. A fatigue-resistant cladding technology is presented in this thesis, with the aim of inducing compressive residual stresses in the clad layer. Through the generation of these beneficial compressive residual stresses an improvement in fatigue …
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Carbide-free bainitic steels for wear and rolling contact fatigue resistant applications
… for wear resistance and rolling contact fatigue. The idea of using carbide free bainitic steels for these kinds of applications is not new; however, a straightforward relationship between microstructural features and the ultimate performance has yet to be found. It is believed that the …
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Projection of fractures in ships for the evaluation of fatigue resistant designs
… of a new ship is whether to invest in a fatigue resistant design, or to keep the construction cost low and incur the repair costs as cracks emerge later in the ship's life. This choice has to be made for hundreds of components throughout the ship's hull. A procedure was developed to …
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MACROPHAGE RESPONSE TO INITIAL MUSCLE DENERVATION IN THE SOD1-G93A MOUSE MODEL OF AMYTROPHIC LATERAL SCLEROSIS.
… early in the disease process compared to fast-fatigue resistant (FR) and slow (S) NMJs. In the SOD1G93A mouse model of ALS, initial NMJ denervation occurs in the TA muscle (FF and FR fibers) between postnatal day (P)14 and P30, while little denervation occurs in soleus muscle (S and FR fibers) …
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Hydrogel Machines - Design, Manufacturing, and Applications
… report the design and manufacturing of tough, fatigue-resistant hydrogel materials and their adhesions with various engineering materials. Based on these hydrogel materials and adhesions, I present three types of hydrogel machines, including hydrogel living devices that incorporate living …
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Optimum Design of Composite Wing Spar Subjected to Fatigue Loadings
… being over designed to satisfy static and fatigue requirements. A greater understanding of composite fatigue behavior will allow for even greater weight savings leading to increased fuel economy. A critical part of an aircraft that is subjected to fatigue bending loads are its wings. The …
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Fracture Resistance of Coated Polycrystalline Silicon Wafers
… Vickers and Berkovich indentations, to stimulate fatigue fracture under routine laboratory conditions. A special attention was paid to the resistance of the wafers to cyclic thermal and mechanical loadings. The thermal fatigue tests were conducted by heating the specimens to 300°C and consequently …
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Design and Analyses of a Dimple Array Interconnect Technique for Power Electronics Packaging
… that the Dimple Array solder joints are more fatigue-resistant due to a reduced stress/strain concentration. Furthermore, failure mechanisms were explored using the mapped stress/strain distribution within the models. It was found that the CCB solder joint has a highly localized strain …
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A Comparative Study of the Fatigue Resistance of Four Orthodontic Alloys
This investigation was designed to compare the fatigue resistance of four orthodontic alloys and to determine whether their surface characteristics had any influence on their fatigue lives. Stainless steel, Blue Elgiloy, TMA, and Nitinol were evaluated using a round (.018") and a rectangular (.016" …
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Piezoelectric, Dielectric and Ferroelectric Thin Films on Metal Substrates for Microelectronic Applications
… PZT films on Cu foil, the capacitors do not fatigue upon repeated switching like those with Pt noble metal electrodes. Instead they appear to be fatigue-resistant like ferroelectric capacitors with oxide electrodes. This may have implications for ferroelectric nonvolatile memories. The effect …
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Engineering effective fibrocartilage replacement technologies using nanostructure-driven replication of soft tissue biomechanics in thermoplastic elastomer hydrogels
… driven by undesirable hysteresis and permanent fatigue, and recovery dynamics too slow to accommodate rapid cycling prominent in most biomechanical loading profiles. This dissertation presents a new paradigm in hydrogel design based on prefabrication of an efficient nanoscale network …