Yazar "Sahin, OS" seçeneğine göre listele
Listeleniyor 1 - 6 / 6
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Buckling of metal-reinforced thermoplastic composite laminated plates with holes(SAGE PUBLICATIONS LTD, 2005) Yapici, A; Sahin, OS; Arikan, HIn this study, mechanical buckling behaviors of composite square plates of four symmetric and antisymmetric layers with holes are examined. A thermoplastic material is used as the matrix material. Two different reinforced materials are used, of which one is a galvanized steel wire and the other a woven galvanized wire. The hole type is taken as circular. The finite element method is used for the solution. First critical buckling loads of an orthotropic plate with and without hole subjected to unidirectional compression are found. The results are illustrated in figures.Öğe Elastic-plastic stress analysis of woven Cr-Ni-reinforced composite-laminated plates with a hole under in-plane loading(SAGE PUBLICATIONS LTD, 2005) Yapici, A; Sahin, OS; Uyaner, MAn elastic-plastic stress analysis and the expansion of plastic zone in layers of woven steel fiber-reinforced thermoplastic matrix-laminated plates are studied by using the Finite Element Method and the First-order shear deformation theory for small deformations. Composite structures consisting of woven Cr-Ni wire as a fiber and F2.12 low-density polyethylene as a thermoplastic matrix were manufactured by hot-press molding. The mechanical properties were experimentally determined. The effect of orientation angle and symmetric-antisymmetric structures were investigated. It is assumed that the laminated plates are subjected to in-plane uniform loads. Loading is gradually increased from yield point of the plate as 0.01 MPa at each load step. Load steps are chosen as 300, 400, and 500.Öğe Plastic zones and residual stresses of metal reinforced composite laminated rectangular plates wit a hole under in-plane loading(SAGE PUBLICATIONS LTD, 2006) Sahin, OSThe nonlinear stress analysis and the spread of plastic zones in layered woven steel fiber-reinforced thermoplastic-matrix laminated rectangular plates are examined using the Finite element method and the first-order shear deformation theory for small deformations. Composite structures consisting of woven Cr-Ni wire as the fiber and F2.12 low-density polyethylene as the thermoplastic matrix are manufactured by hot-press molding. The mechanical properties are experimentally determined. The effect of aspect ratio of rectangular plate and antisymmetric structure is investigated. It is assumed that the laminated plates are subjected to in-plane uniform loads. Loading is gradually increased from the yield point of the plate as 0.01 MPa at each load step. Load steps are chosen as 300, 350, and 400 iterations. Residual stresses and expansion of plastic zone have been presented by means of tables and figures.Öğe Thermal buckling of hybrid angle-ply laminated composite plates with a hole(ELSEVIER SCI LTD, 2005) Sahin, OSIn this paper, thermal buckling analysis of symmetric and antisymmetric laminated hybrid composite plates with a hole subjected to a uniform temperature rise for different boundary conditions is presented. The first-order shear deformation theory in conjunction with variational energy method is employed in mathematical formulation. The eight-node Lagrangian finite element technique is used for obtaining the thermal buckling temperatures of glass-epoxy/boron-epoxy hybrid laminates. The effects of hole size, layup sequences and boundary conditions on thermal buckling temperatures are investigated. The results are shown in graphical form for various boundary conditions. (c) 2005 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.
