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Probabilistic finite element analysis and size effects of polymer matrix marine grade composites /Nader, Jacques Walid, January 2007 (has links) (PDF)
Thesis (M.S.) in Civil Engineering--University of Maine, 2007. / Includes vita. Includes bibliographical references (leaves 103-105).
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Structural Design, Analysis And Composite Manufacturing Applications For A Tactical Unmanned Air VehicleSoysal, Sercan 01 May 2008 (has links) (PDF)
In this study structural design, analysis and composite manufacturing applications for a tactical UAV, which was designed and manufactured in Aerospace Engineering Department of Middle East Technical University (METU), is introduced. In order to make an accurate structural analysis, the material and loading is modeled properly. Computational fluid dynamics (CFD) was used to determine the 3D pressure distribution around the wing and then the nodal forces were exported into the finite element program by means of interpolation from CFD mesh to finite element mesh. Composite materials which are mainly used in METU TUAV are woven fabrics which are wetted with epoxy resin during manufacturing. In order to find the elastic constants of the woven fabric composites, a FORTRAN code is written which utilizes point-wise lamination theory. After the aerodynamic load calculation and material characterization steps, linear static and dynamic analysis of the METU TUAV&rsquo / s wing is performed and approximate torsional divergence speed is calculated based on a simplified approach. Lastly, co-cured composite manufacturing of a multi-cell box structure is explained and a co-cured multi-cell box beam is manufactured.
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Structural performance of wood plastic composite sheet piling /Alvarez-Valencia, Daniel, January 2009 (has links)
Thesis (M.S.) in Civil Engineering--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaves 115-121).
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