Free vibration characteristics of multi-core sandwich composite beams: Experimental and numerical investigation

Autor:	Ankur Patel, Rajeshkumar Selvaraj, Kamesh Gupta, Manoharan Ramamoorthy, Shubham Singh
Rok vydání:	2021
Předmět:	Vibration Multi-core processor Materials science Polymers and Plastics business.industry Materials Chemistry Ceramics and Composites Physics::Accelerator Physics Structural engineering business Composite beams
Zdroj:	Polymers and Polymer Composites. 29:S1414-S1423
ISSN:	1478-2391 0967-3911
DOI:	10.1177/09673911211057679
Popis:	This study investigates the free vibration responses of laminated composite sandwich beam with multi-cores using experimental and numerical methods. The laminated composite face sheets are made by using hand layup method. An experimental modal test has been carried for different configurations of multi-core sandwich beams under different end conditions. The single-core and multi-core sandwich beams has been modeled and the natural frequencies of sandwich beams are determined using ANSYS software. The numerical model is verified by comparing the obtained natural frequencies with experimental results. The numerical and experimental results indicate that the multi-core sandwich beam greatly influences the structural stiffness compared with single-core sandwich beam under different end conditions. Furthermore, the influence of several parameters such as the end conditions, thickness of the core layer, and stacking sequence on the natural frequencies of the various configurations of the multi-core sandwich beams are presented.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::aca04160850d51290cf82725ac0be73b https://doi.org/10.1177/09673911211057679 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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