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dc.contributor.advisorGokhale, Arun M.
dc.contributor.authorSingh, Harpreeten_US
dc.date.accessioned2008-06-10T20:37:25Z
dc.date.available2008-06-10T20:37:25Z
dc.date.issued2007-12-17en_US
dc.identifier.urihttp://hdl.handle.net/1853/22564
dc.description.abstractThe conventional route of materials development typically involves fabrication of numerous batches of specimens having a range of different microstructures generated via variations of process parameters and measurements of relevant properties of these microstructures to identify the combination of processing conditions that yield the material having desired properties. Clearly, such a trial and error based materials development methodology is expensive, time consuming, and inefficient. Consequently, it is of interest to explore alternate strategies that can lead to a decrease in the cost and time required for development of advanced materials such as composites. Availability of powerful and inexpensive computational power and progress in computational materials science permits advancement of modeling and simulations assisted materials design methodology that may require fewer experiments, and therefore, lower cost and time for materials development. The key facets of such a technology would be computational tools for (i) creating models to generate computer simulated realistic microstructures; (ii) capturing the process-microstructure relationship using these models; and (iii) implementation of simulated microstructures in the computational models for materials behavior. Therefore, development of a general and flexible methodology for simulations of realistic microstructures is crucial for the development of simulations based materials design and development technology. Accordingly, this research concerns development of such a methodology for simulations of realistic microstructures based on experimental quantitative stereological data on few microstructures that can capture relevant details of microstructural geometry (including spatial clustering and second phase particle orientations) and its variations with process parameters in terms of a set of simulation parameters. The interpolation and extrapolation of the simulation parameters can then permit generation of atlas of virtual microstructures that covers the complete range of variations of processing conditions of interest. These simulated and virtual microstructures can then be used in the micromechanical models such as FEM to analyze their constitutive propertiesen_US
dc.publisherGeorgia Institute of Technologyen_US
dc.subjectSimulationen_US
dc.subjectMicrostructuresen_US
dc.subjectCompositesen_US
dc.subjectDiscontinuously reinforced aluminumen_US
dc.subject.lcshMicrostructure
dc.subject.lcshComputer simulation
dc.subject.lcshMaterials
dc.subject.lcshMaterials science
dc.subject.lcshMicromechanics
dc.titleComputer simulations of realistic microstructures: implications for simulation-based materials designen_US
dc.typeText
dc.description.degreePh.D.en_US
dc.contributor.departmentMaterials Science and Engineeringen_US
dc.contributor.committeeMemberHamid Garmestani
dc.contributor.committeeMemberKarl Jacob
dc.contributor.committeeMemberLiu, Meilin
dc.contributor.committeeMemberSteve Johnson
dc.type.genreDissertation


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