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 9 of 9 for “"Mechanical Material Properties"”.
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High temperature degradation of graphite/epoxy composites
… exposed to a high temperature environment while mechanically loaded is approached by identifying the underlying mechanisms and addressing them separately. The approach is general, but the work focuses on the response of AS4/3501-6 graphite/epoxy composites. The mechanisms studied and modeled in …
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Effect of print orientation on mechanical material behavior in fused deposition modeling 3-D printing
… layer-based processes, resulting in anisotropic material behavior of the printed object. Thus, the print orientation of the object is a crucial factor in its mechanical properties, such as strength and elastic modulus. While anisotropy in 3-D printing has been extensively studied, a gap in …
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COLD SPRAYED COATINGS WITH DUAL NANOPARTICLE REINFORCEMENTS FOR WEAR AND CORROSION PROTECTION
… particles down to nanoparticles enhance the mechanical material properties of a substrate in wear resistance. Micron- and submicron-sized particles are beneficial, but due to their low relative surface areas, they tend to exhibit pull out more often and do not adhere to a substrate as well as …
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A stabilized discontinuous Galerkin method for variational embedding of physics-based data
… boundaries and allows for sharp changes in mechanical material properties. Interface coupling operators that emanate via embedding of Discontinuous Galerkin ideas in the continuous Galerkin framework provide a unique avenue to embed physics-based data in the modeling and analysis of the …
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Design fabrication and calibration of MEMS actuators for in-situ materials testing
Many MEMS devices utilize thin metallic films as mechanical structures. The elastic and plastic properties of these thin films (thickness < 1μm) are significantly different from those of the bulk material. At these scales the volume fraction of material defects such as: grain boundaries, …
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Bioinspired algorithmic-driven design of additively manufactured composites
… it comes as no surprise that biological materials are identified as invaluable sources of inspiration in the search for new materials. Bone, teeth, and spider silk, to name a few, are high-performing biological composites that possess impressive mechanical properties unmatched by their …
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Characterization of the mechanical properties of freestanding platinum thin films
… utilize nanocrystalline thin metallic films as mechanical structures, in particular, micro switching devices where these films are used as Ohmic contacts. But the elastic and plastic properties of these thin films (thickness < 1μm) are significantly different from those of the bulk material. At …
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Impact of mechanical signals on human foetal lung cell differentiation
A major function of the lung is as a mechanical pump to bring oxygen-rich air into the body, allow gas exchange to occur, and remove carbon dioxide-rich air. It is increasingly recognized that physical forces, such as tension, compression, or shear, as well as passive mechanical material properties …
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Magnetic Resonance Elastography of the Brain: from Phantom to Mouse to Man
… understand brain deformation, brain tissue mechanical properties, and brain-skull interaction in vivo. The findings of this study provide parameters for numerical models of human head biomechanics, as well as data for validation of these models. Numerical simulations offer enormous potential …