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dc.contributor.advisorSmith, Douglas E., 1962-eng
dc.contributor.authorCaselman, Elijaheng
dc.date.issued2007eng
dc.date.submitted2007 Falleng
dc.descriptionThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from title screen of research.pdf file (viewed on March 19, 2008)eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionThesis (M.S.) University of Missouri-Columbia 2007.eng
dc.descriptionDissertations, Academic -- University of Missouri--Columbia -- Mechanical and aerospace engineering.eng
dc.description.abstractThis thesis presents a uniform method to determine the elastic material non-isotropic properties of fiber reinforced composite materials. This method employs a uniform array of custom 3D displacement based elements that use an increased number of Gauss points in the elemental stiffness calculation in order to define the fiber boundaries. The material properties at each Gauss point are dependent upon whether the Gauss point lies within a fiber or matrix. A correction factor is developed to account for differences in strain in the fiber and matrix and thus provide increased accuracy for "hybrid" elements. This method allows for a significant reduction in the number of degrees of freedom in the model, resulting in dramatically reduced memory requirements and computational time. The use of a uniform mesh also greatly simplifies the meshing procedure and is ideal for implementing periodic boundary conditions. The method is compared with continuous and a short single fiber finite element models found in literature. The method is also used to provide property predictions for a model consisting of 100 misaligned short fibers randomly placed using a Monte Carlo algorithm. The predictions are compared with a constant strain orientation averaging scheme using both the Halpin-Tsai and Tandon-Weng micromechanical models. The method is shown to be in good agreement with the results from literature.eng
dc.identifier.merlinb6276794xeng
dc.identifier.oclc213487137eng
dc.identifier.urihttps://hdl.handle.net/10355/5036
dc.identifier.urihttps://doi.org/10.32469/10355/5036eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.relation.ispartofcommunityUniversity of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2007 Theseseng
dc.subject.lcshFinite element methodeng
dc.subject.lcshFibrous composites -- Elastic propertieseng
dc.subject.lcshMeshfree methods (Numerical analysis)eng
dc.subject.lcshMonte Carlo methodeng
dc.titleElastic property prediction of short fiber composites using a uniform mesh finite element methodeng
dc.typeThesiseng
thesis.degree.disciplineMechanical and aerospace engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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