Study of modal behaviour of sandwich structure with various core materials - An analytical approach / Krishanu Gupta in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 30, N° 1 (02/2020)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 30, N° 1 (02/2020) . - p. 15-21 Titre : Study of modal behaviour of sandwich structure with various core materials - An analytical approach Type de document : texte imprimé Auteurs : Krishanu Gupta, Auteur ; Prasun Chakraborti, Auteur ; Chiranjit Bhowmik, Auteur Année de publication : 2020 Article en page(s) : p. 15-21 Note générale : Bibliogr. Langues : Français (fre) Catégories : Construction sandwich Déformations (mécanique) Géométrie Poutres Structure en nid d'abeilles Vibrations (mécanique) Index. décimale : 620.11 Matériaux (propriétés, résistance) Résumé : The present study comprises of different types of cored sandwich structures with different core geometries. A combination of materials of skins and cores were considered to investigate the free vibrational or modal behaviour on the core materials and geometries for the structure for illuminating the vibrational aspects for failures. Subsequently, the deformation for sandwich structures with various core geometries and materials was also studied. The objective of the article is to provide an essence of vibrational performance study of aluminium alloy for both skins, and the results were compared among core materials unlike materially configured sandwich structures of honeycomb core. Simulations of mode shapes were obtained using the free vibrational constraints. From this study, it was obtained that, two types of core geometries strictly imply that there is obvious effect of shape of core in sandwich beam vibrational characteristics of structure, as in the study. Lastly, the results obtained by using honeycomb core geometry of certain material was compared to regular rectangular geometrized core and found to have better results in terms of natural frequencies and maximum deformation of the later. Thus, findings may serve as a case for application of similar structures in engineering applications. Note de contenu : - THEORETICAL MODAL ANALYSIS - SANDWICH COMPONENTS MODELLING AND MATERIALS - MODAL BEHAVIOUR AND ANALYSIS : Mode shape analyses of sandwich panels - Table 1 : Material combination for sandwich beams - Table 2 : Material properties of skin and core - Table 3 : Dimensional considerations of sandwich panel - Table 4 : Maximum deformation at different modes DOI : https://doi.org/10.18280/rcma.300103 En ligne : https://www.iieta.org/download/file/fid/27103 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37585 [article]

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