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Vibration and buckling analyses of laminated panels with and without cutouts under compressive and tensile edge loads
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 Title & Authors
Vibration and buckling analyses of laminated panels with and without cutouts under compressive and tensile edge loads
Rajanna, T.; Banerjee, Sauvik; Desai, Yogesh M.; Prabhakara, D.L.;
 Abstract
In this study, the influence of centrally placed circular and square cutouts on vibration and buckling characteristics of different ply-oriented laminated panels under the action of compressive and/or tensile types of non-uniform in-plane edge loads are investigated. The panels are inspected under the action of uniaxial compression, uniaxial tension and biaxial, compression-tension, loading configurations. Furthermore, the effects of different degrees of edge restraints and panel aspect ratios are also addressed in this work. Towards this, a nine-node heterosis plate element has been adopted which includes the effect of shear deformation and rotary inertia. According to the results, the tensile buckling loads are higher than that of compressive buckling loads. However, the tensile buckling load continuously reduces with the increased cutout sizes irrespective of ply-orientations. This is also true for compressive buckling loads except for some particular ply-orientations with higher sized cutouts.
 Keywords
laminates;cutout parameters;finite element method;heterosis element;vibration;buckling;
 Language
English
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