توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Local Buckling Analysis of Rectangular and Longitudinally Stiffened Functionally Graded Plates using the Finite Strip Method
نویسنده(ها): ، ،
اطلاعات انتشار: دومین کنفرانس بین المللی کامپوزیت، سال
تعداد صفحات: ۶
Local buckling of rectangular, through thickness Functionally Graded Plates (FGPs) is investigated in many studies. The in–plane load capacity of a plate can considerably be increased by addition of stiffeners. Two forms of buckling are considered in the stiffened plates, i.e. local buckling of the plate between the stiffeners and overall buckling of the plate–stiffener combination. The present study considers local buckling of long stiffened plates made of a FGM. The upper surface of the plate is made of a ceramic and continuously changes through the thickness of the plate to a metallic surface. The longitudinal stiffeners are made of the same metallic material of the FGM. The plate is uniformly loaded in direction parallel to the stiffeners. Finite Strip Method (FSM) is applied to analyze the buckling load. Local buckling coefficients for rectangular FGM plates with different boundary conditions are determined and shown in graphs versus aspect ratio. Results for stiffened FGM plates under uniaxial compression are presented.<\div>

۲local buckling of laminated composite plates with different boundary conditions using the finite layer method
نویسنده(ها): ،
اطلاعات انتشار: نهمین کنگره بین المللی مهندسی عمران، سال
تعداد صفحات: ۷
In this paper the stability of both isotropic and composite laminated plates with different boundary conditions is studied by finite layer method this method that is an extension of the well known finite element method efficiently transformed three dimensional problem into one dimensional because of the trigonometric rpopertiesby assuming u,v,w and using energy approach for each layer the stiffness and geometry matrices are obtained.<\div>

۳buckling of thin composite plates reinforced with randomly oriented, straight singlewalled carbon nanotubes using B3–Spline finite strip method
نویسنده(ها): ، ،
اطلاعات انتشار: اولین کنفرانس ملی مصالح و سازه های نوین در مهندسی عمران، سال
تعداد صفحات: ۹
This paper is devoted to the buckling analysis of thin composite plates under straight single–walled carbon nanotubes reinforcement with uniform distribution and random orientations. In order to develop the fundamental equations, the B3–Spline finite strip method along with the classical platetheory (CPT) is employed and the total potential energy is minimized which leads to an eigenvalueproblem. For deriving the effective modulus of thin composite plates reinforced with carbonnanotubes, the Mori–Tanaka method is used in which each straight carbon nanotube is modeled as afiber with transversely isotropic elastic properties. The numerical results including the criticalbuckling loads for rectangular thin composite plates reinforced by carbon nanotubes with various boundary conditions and different volume fractions of nanotubes are provided and the positive effectof using carbon nanotubes reinforcement in buckling of thin plates is illustrated<\div>

۴Inelastic Buckling of Plates Having Step Variation in Thickness using modified B3–Spline Finite Strip Method
نویسنده(ها): ،
اطلاعات انتشار: دهمین کنگره بین المللی مهندسی عمران، سال
تعداد صفحات: ۸
In this paper, inelastic buckling of unstiffened and stiffened having step variation in thickness arbitrarily in both directions is presented. The problem is accomplished using the Ramberg–Osgood stress–strain relationship for the material and the deformation theory of elasticity for capturing the inelastic behavior is adopted. The analysis is based on the B3–spline finite strip method and in the context of the classical platetheory. Description is given by introducing the concept of multiple knots which modifies the shape functions on the steps positions making the method versatile enough in dealing with any longitudinal change in thickness of the strip element. The problem can be overcome by inserting the multiple knots at the location of the changes. A number of examples are presented to show the accuracy and efficiency of the method.<\div>
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