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Steel and Composite Structures Volume 46, Number 5, March10 2023 , pages 659-667 DOI: https://doi.org/10.12989/scs.2023.46.5.659 |
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Nonlinear dynamic characteristic of sandwich graphene platelet reinforced plates with square honeycomb core |
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Mamoon A.A. Al-Jaafari, Ridha A. Ahmed, Raad M. Fenjan and Nadhim M. Faleh
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| Abstract | ||
| Nonlinear forced vibration behaviors of sandwich plates having graphene platelets (GPL) based face sheets have been researched in this article. Possessing low weight together with low stiffness, square honeycomb cores are mostly constructed by aluminum. Herein, the square shaped core has been fortified by two skins of GPL-based type in such a way that the skins have uniform and linearly graded GPL dispersions. The square shaped core has the effective material specification according to the relative density concept. The whole formulation has been represented based upon classical plate theory (CPT) while harmonic balance approach is applied for solving the problem and plotting the amplitude-frequency curves. The forced vibration behaviors of such plates are influenced by square-shaped core and the relative density, skin's height and GPL fortification. | ||
| Key Words | ||
| composites; design; dynamics; forced vibrations; harmonic balance method; honeycomb sandwich panels | ||
| Address | ||
| Mamoon A.A. Al-Jaafari, Ridha A. Ahmed, Raad M. Fenjan and Nadhim M. Faleh:Al-Mustansiryah University, Engineering Collage P.O. Box 46049, Bab-Muadum, Baghdad 10001, Iraq | ||