Yazar "Daghan, B" seçeneğine göre listele

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    Elastic-plastic thermal stress analysis of an aluminum metal-matrix composite disc under uniform temperature distribution
    (FREUND PUBLISHING HOUSE LTD, 2004) Daghan, B
    This study deals with an elastic-plastic stress analysis on an aluminum metal-matrix composite disc under uniform temperature distribution. The composite disc is reinforced curvilinearly by steel fibers. Thermal stresses occur for the uniform temperature distribution due to the different thermal expansion coefficients in radial and circumferential directions. The magnitude of the circumferential stress component is higher than that of the radial stress component. Plastic yielding starts first at the inner surface. When the temperature is increased, plastic yielding expands also at the outer surface. The solution is performed by a numerical method. The magnitude of the residual stress component of the circumferential stresses is found to be highest at the inner surface.
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    Predicting the first-ply failure of multilayered composite cylinders under hygrothermal loading
    (SAGE PUBLICATIONS LTD, 2005) Daghan, B
    The present study deals with the effects of combined internal pressures, temperatures, and moistures on filament-wound multilayered composite cylinders for the plane-strain case. The analysis accounts for the failure pressure for various orientation angles under hygrothermal conditions. The Tsai-Wu criterion is used for checking the first-ply failure of layers. The chosen orientation angles are 15, 30, 45, 60, and 75 degrees.
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    Thermal buckling of rectangular laminated plates with a hole
    (SAGE PUBLICATIONS LTD, 2005) Avci, A; Kaya, S; Daghan, B
    Thermal buckling analysis of symmetric and antisymmetric laminated composite plates with clamped and simply supported edges, and containing a hole is presented in this paper. The first-order shear deformation theory in conjunction with the variational energy method is employed in mathematical formulation. The eight-node Lagrangian finite element technique is used to find thermal buckling temperatures of isotropic, glass-epoxy and boron-epoxy laminates. The effects of hole size, angle of ply orientation, lay-up sequences, and boundary conditions on thermal buckling temperatures are investigated. The result is shown in graphical forms for various boundary conditions.