Numerical Analysis on Vibro-Acoustic Behavior of Honeycomb Core Sandwich Structure with FG-CNT-Reinforced Polymer Composite Facings

Numerical studies carried out on the vibro-acoustic characteristics of an aluminum honeycomb core sandwich structure with functionally graded carbon nanotube polymer composite facings are presented. The layer-by-layer technique is used to model the structure by finding the equivalent elastic propert...

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Bibliographic Details
Published in:Iranian journal of science and technology. Transactions of mechanical engineering 2022-12, Vol.46 (4), p.943-956
Main Authors: Bhagat, Vinod S., George, Nivish, Arunkumar, M. P., Pitchaimani, Jeyaraj, Babu, M. C. Lenin
Format: Article
Language:English
Subjects:
Engineering
Mechanical Engineering
Research Paper
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Summary:Numerical studies carried out on the vibro-acoustic characteristics of an aluminum honeycomb core sandwich structure with functionally graded carbon nanotube polymer composite facings are presented. The layer-by-layer technique is used to model the structure by finding the equivalent elastic properties. From the vibration response, the acoustic characteristic of the honeycomb structure is found by using kinematic continuity between structural velocity and particle velocity at the surface. Forced vibration response of a hexagonal honeycomb sandwich structure is calculated experimentally, and results are compared with the proposed numerical method. Further, the result reveals that the FG-V Λ structure has better vibro-acoustic characteristics rather than FG-XX which gives better acoustic properties when it is considered as a plate without sandwich construction.
ISSN:2228-6187
2364-1835
DOI:10.1007/s40997-021-00462-0