Yazar "Avci, A" seçeneğine göre listele
Listeleniyor 1 - 5 / 5
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Elasto-plastic stress analysis of aluminum metal-matrix composite plate under in-plane loading(SAGE PUBLICATIONS LTD, 2004) Ataberk, N; Uyaner, M; Avci, A; Kocak, SComposite structure consisting of stainless steel fiber and aluminum matrix is manufactured by hot-press molding. The mechanical properties were determined experimentally. The effect of orientation angle is investigated under in-plane loading. An elastic-plastic numerical solution has been carried out by finite element method (FEM). The expansion of plastic zones has been illustrated in figures.Öğe Strip yield zones around ring-shaped crack in transversely isotropic thick layer(ELSEVIER SCIENCE BV, 2004) Avci, A; Ataberk, N; Uyaner, MA ring-shaped crack under uniform load in an infinitely long elastic-perfectly plastic thick layer is considered. The problem is formulated for a transversely isotropic material by using integral transform technique. Due to the geometry of the configuration, Hankel integral transform technique was chosen and the problem was reduced to a singular integral equation which is solved numerically by using Gaussian Quadrature Formulae and the values were evaluated at discrete points. The plastic zone widths were obtained by using the plastic strip model after stress intensity factors were obtained. Numerical results are plotted for various ring-shaped crack sizes and transversely isotropic materials. It was found that the width of the plastic zone at the inner edge of the crack was greater than the outer one. (C) 2004 Elsevier Ltd. All rights reserved.Öğe Thermal buckling of hybrid laminated composite plates with a hole(ELSEVIER SCI LTD, 2005) Avci, A; Sahin, OS; Uyaner, MThermal buckling analysis of symmetric and antisymmetric cross-ply laminated hybrid composite plates with a hole subjected to a uniform temperature rise for different boundary conditions are presented in this paper. The first-order shear deformation theory in conjunction with variational energy method is employed in the mathematical formulation. The eight-node Lagrangian finite element technique is used for finding the thermal buckling temperatures of hybrid laminates. The effects of hole size, lay-up sequences and boundary conditions on the thermal buckling temperatures are investigated. The results are shown in graphical form for various conditions. (c) 2004 Published by Elsevier Ltd.Öğe Thermal buckling of orthotropic plates with angle crack(SAGE PUBLICATIONS LTD, 2004) Sahin, OS; Avci, A; Kaya, SIn this study, thermal buckling behaviors of the composite square plates consisting of antisymmetric four laminates with angle crack are examined. Finite element method is used for the solution. First critical buckling loads of an orthotropic plate without crack subjected to unidirectional compression are found. Constraint conditions have been taken two edge clamped and the other edges are free. The thickness of plate is 2 mm (each layer has 0.5 mm thickness). Thermal buckling behaviors of this plate are examined and critical temperatures are determined. Values have been given in the graphs and discussions are presented in the conclusion.Öğe Thermal buckling of rectangular laminated plates with a hole(SAGE PUBLICATIONS LTD, 2005) Avci, A; Kaya, S; Daghan, BThermal 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.
