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 265 for “"Mechanical Testing"”.
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The mechanical testing of single nanofiber
… force curves with the help of the Hertz model. Mechanical testing confirmed that the single aligned nanofiber can be an advancement in the commercial applications of nanofibers.
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Cyclic and Mechanical Testing of Instrumented Swine Spines.
Deformities of the spine in the form of abnormal lateral curvatures have been noted throughout history. These deformities, if left to progress, can become very pronounced and respiratory problems often follow. The treatment for less severe curvatures usually consists of external bracing of the …
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Synthesis, Consolidation, and Mechanical Testing of Nanophase Metals
Indentation creep experiments were performed on nanocrystalline copper and palladium specimens and also on sinterforged Ti-48Al specimens. The copper and palladium specimens showed a higher creep rate than their microcrystalline counterparts, exhibiting creep even at room temperature. The …
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Instrumentation for multiaxial mechanical testing of inhomogeneous elastic membranes
… and construction of an instrument for biaxial mechanical testing of inhomogeneous elastic membranes. The instrument incorporates an arrangement of linear motion stages for applying arbitrary deformation profiles on the material under test, purpose-built two-axis force transducers for …
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Mechanical testing of rapid-prototyping refractory ceramic print media
… refractory alumina-silica ceramics were mechanically tested to ascertain their ultimate tensile strengths and observed to determine their dimensional consistency over the printing and post-printing process. The equipment used to perform tensile testing was designed and built for use with …
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Mechanical testing of solid materials at the micro-scale
… and reliable experimental data on the mechanical behavior of materials at that scale. Generation of experimental data requires accurate, robust, reliable, versatile and yet simple micro-scale mechanical testing devices. This thesis describes the design, development and applications of …
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Design and implementation of nanoscale fiber mechanical testing apparatus
… manufacturing industry demands higher resolution mechanical testing devices, capable of working with nanoscale fibers. A new device has been developed to perform single-axis tensile tests on fibers with diameter ranging from 50 nm to 10 [micro]m. The device is capable of performing simple …
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Some aspects of the mechanical testing of hot rolled asphalt surfacings.
Hot Rolled Asphalt Wearing course mixtures, containing up to 55% by mass of coarse aggregate, were tested over a range of binder contents using the following test methods: Marshall Test Indirect-Tensile Test Wheel-Tracking Test. The results obtained were used to assess the ability of each of these …
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Calibration of sonographic gel probe covers for in-vivo mechanical testing
… which uses ultrasound elastography to test the mechanical properties of cervical tissue, has been developed. The hand-held ultrasound indentation system will enable in vivo collection of stress-strain data from patients that will provide researchers with the necessary information to be used in …
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Micro & nano scale mechanical testing and assembly with applications to metal based microsystems
… devices. First, the materials’ responses to mechanical deformation at micro & nano scales, namely the mechanical “size effect”, have been explored by molding single crystal Al with long rectangular diamond punches and long wedge shaped indenters. It is noticed that the contact pressure of …
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A protocol for physiological mechanical testing of cortical bone using digital volume correlation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms
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Design of mechanical testing device to measure break angle of thin, stainless steel
Working with Gillette Corporation, an automated mechanical testing tool that bent a small flat piece of steel was designed. The design of the tool was an effort to improve upon previous generations of the same tool. It consisted of three main elements; a servomotor, connected to a torque …
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Multi-axis compliant mechanism-based nanopositioner for multi-mode mechanical testing of carbon nanotubes
… that is capable of multiple modes of mechanical testing. This nanopositioner is a solution to the need to quantify the mechanical properties of CNTs with the appropriate modes of testing, such as simultaneous bending and tensile loading. This information is important as it is required …
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Development of a two-axis cyclic loading device for mechanical testing of glenoid component fixation
… components using three different protocols and testing apparatuses—a Stewart Platform, a cyclic loading experimental rig, and an ASTM F2028-17-compliant version of the experimental rig. The experimental assessment of response forces acting on the glenoid implant is a desired outcome since it can …
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Fabrication of a Low-Cost, Motorized, 3D-Printed Mechanical Testing Device Compatible with Confocal Microscopy
Current mechanical testing approaches in bioengineering involve systems that are bulky, expensive, and unable to work in tandem with many characterization procedures. In this thesis, we report the fabrication of a 3D-printed mechanical testing device with motorized translation controllable over a …
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A study investigating the mechanical testing of a novel dental restorative material and its biocompatibility
… to be such that they are able to withstand both mechanical (masticatory) stress and any chemical activity. The current study investigates the strength and biocompatibility of three Resin Based Composites (RBCs); Ormocer Admira (VOCO, Cuxhaven, Germany), dimethacrylate FiltekTMZ250 (St Paul, MN, …
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Mechanical Testing and Characterization of Proposed Copper Materials for the Disposal of Used Nuclear Fuel Waste
… electrodeposited (ED) or cold-sprayed (CS). Testing included scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD) imaging, tensile tests, and micro-computed tomography (MicroCT). The findings presented in this thesis highlight the significant impact of heat treatment …
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Nanoindentation of copper covetics and the mechanical testing and microstructural imaging of additive manufactured Inconel 718
… material systems over the past century. The mechanical properties of metals have been manipulated by varying the composition of alloys. In this thesis we characterize two metal-based metallic systems: novel metal carbon materials (covetics) and additive manufactured Inconel. Recent efforts …
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