Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of Trapezoidal Shapes and Linearly varying Edge Loads on the Buckling Characteristics of Plates with Cutouts
Critical buckling loads of composite laminates are typically determined by employing analytical techniques based on the presumptions that the square/rectangular plates are subjected to uniform in-plane loads by ignoring the fact that the composite laminates are practically different in shapes and exposed to various kinds of non-uniform edge loads along with cutouts. The current research paper focused on the effect of different non-uniform edge loads on the buckling behavior of trapezoidal composite laminates with/without cutouts by employing finite element formulation. The plate is discretized by using nine-node heterosis plate elements by employing the effect of shear deformation and rotary inertia. A FORTRAN code has been developed to analyze the buckling action of trapezoidal composite laminates with/without cutouts exposed to different types of non-uniform edge loads. The accuracy of the formulation is verified by relating the obtained results with the existing research. The impact of various variables including the size of cutout, types of non-uniform loads, edge conditions, ply orientations and trapezoidal shapes is considered in this study to investigate the effect of each parameter on the buckling characteristics. Buckling load factor optimization using CCD and RSM is also carried out in detail.
Influence of Trapezoidal Shapes and Linearly varying Edge Loads on the Buckling Characteristics of Plates with Cutouts
Critical buckling loads of composite laminates are typically determined by employing analytical techniques based on the presumptions that the square/rectangular plates are subjected to uniform in-plane loads by ignoring the fact that the composite laminates are practically different in shapes and exposed to various kinds of non-uniform edge loads along with cutouts. The current research paper focused on the effect of different non-uniform edge loads on the buckling behavior of trapezoidal composite laminates with/without cutouts by employing finite element formulation. The plate is discretized by using nine-node heterosis plate elements by employing the effect of shear deformation and rotary inertia. A FORTRAN code has been developed to analyze the buckling action of trapezoidal composite laminates with/without cutouts exposed to different types of non-uniform edge loads. The accuracy of the formulation is verified by relating the obtained results with the existing research. The impact of various variables including the size of cutout, types of non-uniform loads, edge conditions, ply orientations and trapezoidal shapes is considered in this study to investigate the effect of each parameter on the buckling characteristics. Buckling load factor optimization using CCD and RSM is also carried out in detail.
Influence of Trapezoidal Shapes and Linearly varying Edge Loads on the Buckling Characteristics of Plates with Cutouts
J. Inst. Eng. India Ser. C
Ranjere, Maharudra (Autor:in) / Rajanna, T. (Autor:in) / Arya, Bheemsha (Autor:in)
Journal of The Institution of Engineers (India): Series C ; 102 ; 1231-1249
01.10.2021
19 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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