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 1112 for “"Engineering Materials"”.
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Cavitation erosion of engineering materials
… the erosion resistance or behaviour of various engineering materials to cavitation erosion in a through flow device. A wide range of engineering materials have been utilized, from metal alloys, plastics, ceramics to composiles. These were procured from various industrial and research …
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Engineering Materials for Non-Compressible Torso Hemorrhage and Internal Bleeding
… In sum, this thesis has investigated several new materials and assays for the treatment of traumatic hemorrhage, opening potential avenues for the development of more effective hemostats.
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Nondestructive inspection and characterization of complex engineering materials via ultrasound techniques.
… techniques for inspecting highly attenuative materials. The first study presented in this work involved a pulse-echo ultrasound technique for inspecting damage at the bondline between a carbon fiber reinforced laminated composite and aluminum. The sample was inspected from both the aluminum …
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Multi-objective optimal seismic design of buildings using advanced engineering materials
… in seismic design are growing issues that the engineering community must face due to increasing human population and excessive use of the earth’s nonrenewable resources. Previous studies have addressed the design and assessment of buildings under seismic loading considering a single objective, …
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Advanced engineering materials for automotive engine components : cost and performance estimations
… Institute of Technology, Dept. of Materials Science and Engineering, 1993.
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Data-Driven Characterization of Micro-structural Shape and Topology in Engineering Materials
… of microstructural shape and topology in engineering materials, integrating invariant geometric descriptors and statistical dimensionality reduction techniques. Specifically, Hu moments, Principal Eigenvalue Moment (PEM), and Principal Component Analysis (PCA) are applied to a diverse …
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Biologically Inspired Optimisation Algorithms for Transparent Knowledge Extraction Allied to Engineering Materials Processing
… predictions of the mechanical properties of materials, which on the one hand can help metallurgists to further understand the underlying mechanisms of alloys processing, and on the other hand will automate and simplify their design. Charpy toughness (impact energy) as a special data set …
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Mode II fracture mechanics of moso bamboo for application in novel engineering materials
Bamboo has been used as a structural material for thousands of years. Recently there has been increasing interest in its use as a modem construction material. In this study, as part of a larger project to characterize the mechanical properties of Moso bamboo for application in the production of …
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Marketing engineering materials to the bicycle industry : a case study for Duralcan metal matrix composites
… Institute of Technology, Dept. of Materials Science and Engineering, 1994.
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Scuffing and wear of engineering materials under different lubrication regimes in the presence of environmentally friendly refrigerants
… Interaction of the lubricant, refrigerant, and materials, plays an important role on the scuffing performance since tribochemical reactions might improve or lower the wear resistance at the sliding interfaces. Studies on CO2 as an alternative refrigerant for air-conditioning systems has been …
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Biomimetic Membranes as New Materials for Applications in Environmental Engineering and Biology
… that biology provides excellent paradigms for engineering materials and processes that are efficient and sustainable and that this ""reverse engineering"" approach can enrich our understanding of underlying biological phenomena."
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Improvement in mechanical properties through structural hierarchies in bio-inspired materials
Structural biological materials such as bone, nacre, insect cuticle, and sea sponge exoskeleton showcase the use of inferior building blocks like proteins and minerals to create structures that afford load-bearing and armor capabilities. Many of these are composite structures that possess the best …
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Synthesis and characterization of high thermal conductive polymers and fabrication of polymer based thermal strap
… As one of the most important and common engineering materials, traditional polymers are both electrically and thermally insulating, due to its organic nature and amorphous structures. In the late 20th century, electrically conductive polymers has been discovered. Thermally conductive …
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Neural network-based material modeling
… network-based material modeling methodology for engineering materials is developed in this study. With this material modeling methodology, the stress-strain behavior of a material is captured within the distributed weight structure of a multilayer feedforward neural network trained directly on …
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Mechanical behavior of closed-cell and hollow-sphere metallic foams
… foams is compared to other low-density engineering materials on a structural basis; hollow-sphere foams offer a beneficial alternative.
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On the Characterization of Engineered Elastomers At High Strain Rates
… designed and constructed to test soft, flexible materials. The third aspect of the work dealt with the numerical modelling of the developed testing apparatus. Finite element methodology was used to optimize the testing parameters and validate the modified Kolsky Bar apparatus. Finally, the …
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Development of a multiple-specimen, reversed-flexure fatigue tester and its application to the testing of titanium sheet
… constantly increases the demands on existing engineering materials. These demands are extremely severe for aerospace materials where the necessity for a higher strength-to-weight ratio is complicated by little understood environmental effects. A major consideration when designing structures is …
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Wind-generatd missile impact on composite wall systems
… are based on high-speed munitions and composite materials. The composite wall systems tested are made from distinct parts such as plywood, steel, and concrete. In this document, composite does not necessarily refer to highstrength, Hghtweight engineering materials consisting of combinations of …
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Self-healing of impact damage in vascular fiber-reinforced composites
… multifunctional behavior in synthetic engineering materials. In this dissertation, methods are explored for recovering mechanical performance of a composite material after an out-of-plane impact event using vascular self-healing technologies. To date, the critical damage modes which …
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Test rig design to simulate ashlock valve erosion in coal gasification systems
… used on site as well as a on selection of common engineering materials. Optical and scanning electron microscopy (SEM) studies revealed a close correlation between in-situ and laboratory erosion damage, suggesting that the test apparatus is a valid simulation of the service problem.
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