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 66 for “"material testing"”.
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Anode Material Testing for Marine Sediment Microbial Fuel Cells
… the comparison of power production from anode material with differing surface area and porosity properties, and secondly, to detect and relatively quantify the exoelectrogenic bacteria that may form biofilms on the anode material. A test tank was used to compare the different types of anode …
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Microinjection moulding and material testing of polyolefins on a small scale
… op polymeren en colloïdale dispersies om nieuwe materialen te ontwikkelen en hun verwerkingsgedrag te bestuderen. De ontwikkeling en studie van nieuwe materialen is een uitzonderlijk lang en duur proces. Voor de studie van het verwerkingsgedrag zijn grote hoeveelheden materiaal nodig. Omdat …
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Design and use of a fixed-end low-load material testing machine
The purpose of this low-load material testing machine is to provide students an opportunity to perform basic material tests on their own instead of watching a lab technician, thus improving the student's lab experience. The machine proposed is small, low cost, and easy to manufacture, assemble, and …
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Identification of dynamic properties of materials for the nuclear waste package
… to experimentally identify dynamic properties of materials for the nuclear waste container; The implementation of the project involves a number of steps. First, candidate materials for the nuclear waste package were identified. Literature review showed that the behavior of these materials under …
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Numerical investigation of dispersion in Hopkinson Pressure Bar
… Pressure Bar (SHPB) is the accepted form of material testing for strain rates between 102 S-I and 104 S-I. Explicit Finite Element Analysis (FEA) codes are increasingly used to model HPB experiments numerically, due to the complicated boundary conditions imposed by tensile and shear SHPB …
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Management of a high mix production system with interdependent demands : simulation of proposed policies
… management in the accessories area of a material testing company is complex. There is interdependence between the demands of products and they can be sold both as part of systems and as individual after sales items. Besides, there is uncertainty in determining replenishment lead times. An …
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Design of a Novel Powered Exoskeleton for Human Jump Augmentation
… launch. Modeling of jumping forces, results from material testing, and mechanical design analysis are presented. Encoders, inertial measurement units, and time of flight sensors are implemented alongside multiple microcontrollers and robust communication protocols to estimate system state and …
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The state of Namibia's concrete infrastructure – A comparative study of Walvis Bay, Swakopmund, Arandis and Usakos towns
… definition, cover, concrete strength, concreting materials and concreting methods. International research has shown that some of these parameters do not have a direct relationship with the durability of “As-built” concrete structures; rather that concrete structures can be designed and constructed …
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Development of a Novel, Manufacturing Method of Producing Cost-Effective Thin-Film Heat Flux Sensors
… nickel/silver conductive ink thermocouple materials onto a thin-film polyimide Kapton® substrate. The semi-automated production capabilities of this manufacturing process significantly decrease the cost of producing thin-film heat flux sensors while still maintaining acceptable performance …
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Method Development for Transmission Electron Microscopy of Carbon Nanotubes and for Distributed Sensing With Triboluminescent Materials in the Premise of Sustainable Infrastructure
… its carbon footprint. Thus a need for higher material strength and proactive structural health monitoring can allow for a significant reduction in overall cement usage as well as the carbon emission associated with it. The overall goal of this thesis is to develop novel techniques for …
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Methodology to determine post yield material mechanical properties from spherical indentation
Conventional material testing methods, such as tensile tests require the preparation of specimens and is not applicable for small-size coupons or on-site, in-situ testing. In this research, a method of determining material stress-strain curve based on spherical indentation is studied. …
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Study of 3D-Printed Polymers for Aerospace Structural Applications
… to help fill that knowledge gap through pristine material testing and environmental degradation testing, as well as developing protocols to help overcome some of the challenges of using additive manufactured polymers. The project focused on a case study problem, that of a service access door for a …
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Chemistry and the Automotive Industry
… (XRF) screening, third party laboratory material testing, and the future of the chemist in the United States (U.S.) automotive industry. The third party testing was performed at Western Kentucky University (WKU) via the Materials Characterization Center (MCC), Institute for Combustion …
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Automobile friction materials: a test instrument and technique for determining dynamic mechanical properties in relation to brake squeal
… organic disc pads. Moulded organic friction materials are complex composites and due to this complexity it was thought that they are unlikely to be of uniform composition. Variation in composition would under certain conditions of the braking system, cause slight changes in its vibrational …
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An Instrument for the Measurement of Soft Material Nonlinear Mechanical Response
Soft material research has seen significant growth in recent years, with emerging applications in robotics, electronics, and healthcare diagnostics where understanding material mechanical response is crucial for precision design. Traditional methods for measuring nonlinear mechanical properties of …
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VHPC Material Characterization and Recommendations for the Buffalo Branch Bridge Rehabilitation
… High Performance Concrete (UHPC) and extensive material tests were performed. The results of the material testing of VHPC and grout revealed that VHPC had higher compressive and tensile strengths, a higher modulus of elasticity, gained strength faster, bonded better to precast concrete, was more …
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PROTON IRRADIATION SAMPLE HOLDER II (PISH II)
… and research in new reactors. The Reactor Material Testing Laboratory (RMTL) at Queen’s University plays a significant role in material research that has applications in extending the lifetime of existing reactors, as well as the evolution of new nuclear reactors. The tandem accelerator in …
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STANDARDS TO CONTROL FRACTURE IN STEEL BRIDGES THROUGH THE USE OF HIGH-TOUGHNESS STEEL AND RATIONAL INSPECTION INTERVALS
… The FCP resulted in more stringent design, material, fabrication, and inspection requirements for non-redundant steel bridges; specifically, a 24 month hands-on inspection criteria for all fracture critical members was established. Significant advances have been made over the past 40 years …
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Design and Performance of Load Bearing Shear Walls Made from Composite Rice Straw Blocks
… The report was divided into four main parts: material testing, development of effective construction detailing, full-scale physical shear wall testing, and a comparison with wood framed shear walls. The first section investigated the feasibility of using the Stak Blocks in a load-bearing wall …
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