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 5 of 5 for “"particle movements"”.
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Analyses and modeling of track transition site responses from instrumented bridge approaches
… was conducted using a state-of-the-art ballast particle image-aided discrete element method (DEM) to investigate the impact forces generated in the presence of these tie-ballast gaps and evaluate their effects on ballast support conditions and individual ballast particle movements. In addition, …
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Experimental study of highly concentrated two-phase flows
… quantities and optical measurement of detailed particle movements. Over 48,000 pictures have been taken and analyzed. Concentration, velocity, and granular-temperature profiles have been obtained for the first time. The new physical phenomena observed give many physical insights.
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Experimentally validated DEM modelling of granular materials under simple shear testing
… information such as contact networks and particle movements, that is underlying, but not observed directly from the experiments. In this study, a number of uni-directional and bi-directional experimental and DEM simple shear tests were conducted to provide a database for studying the …
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Numerical and experimental evaluation of the erodibility of particle packings with surface treatments and spring reinforcements using the discrete element method
… of homogeneous two-dimensional spherical particle packings subjected to added mass surface treatments was explored using a combination of physical flume experiments and the discrete element method (DEM). Packings composed of spherical glass particles, with and without surface treatments …
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Aufklärung des kooperativen Materialtransports während des Sinterns mittels Computer-Tomographie
Die Aufklärung des kooperativen Materialtransports während des Sinterns von Metallen zielt auf eine verbesserte Vorhersage und theoretische Beschreibung des Sinterprozesses ab. Dem kooperativen Materialtransport wird in der Literatur ein signifikanter Beitrag zur Gesamtschwindung zugeschrieben. …