Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate

The functionally graded honeycomb has the characteristic of light weight, low density, high impact resistance, noise reduction, and energy absorption as a kind of new composite inhomogeneous materials. It has the advantages of both functionally graded materials and honeycombs. In this paper, a funct...

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Autores principales:	Jun-hua Zhang, Bao-juan Dong, Bince He, Ying Sun
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/b05d009ef1484a1ca1dc0a184fd2fac8
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spelling	oai:doaj.org-article:b05d009ef1484a1ca1dc0a184fd2fac82021-11-29T00:56:30ZFree Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate1875-920310.1155/2021/8043368https://doaj.org/article/b05d009ef1484a1ca1dc0a184fd2fac82021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/8043368https://doaj.org/toc/1875-9203The functionally graded honeycomb has the characteristic of light weight, low density, high impact resistance, noise reduction, and energy absorption as a kind of new composite inhomogeneous materials. It has the advantages of both functionally graded materials and honeycombs. In this paper, a functionally graded honeycomb sandwich plate with functionally graded distributed along the thickness of the plate is constructed. The equivalent elastic parameters of the functionally graded honeycomb core are given. Based on Reddy’s higher-order shear deformation theory (HSDT) and Hamilton’s principle, the governing partial differential equation of motion is derived under four simply supported boundary conditions. The natural frequencies of the graded honeycomb sandwich plate are obtained by both the Navier method from the governing equation and the finite element model. The results obtained by the two methods are consistent. Based on this, the effects of parameters and graded on the natural frequencies of the functionally graded honeycomb sandwich plate are studied. Finally, the dynamic responses of the functionally graded honeycomb sandwich plate under low-speed impacts are studied. The results obtained in this paper will provide a theoretical basis for further study of the complex dynamics of functionally graded honeycomb structures.Jun-hua ZhangBao-juan DongBince HeYing SunHindawi LimitedarticlePhysicsQC1-999ENShock and Vibration, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Jun-hua Zhang Bao-juan Dong Bince He Ying Sun Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate
description	The functionally graded honeycomb has the characteristic of light weight, low density, high impact resistance, noise reduction, and energy absorption as a kind of new composite inhomogeneous materials. It has the advantages of both functionally graded materials and honeycombs. In this paper, a functionally graded honeycomb sandwich plate with functionally graded distributed along the thickness of the plate is constructed. The equivalent elastic parameters of the functionally graded honeycomb core are given. Based on Reddy’s higher-order shear deformation theory (HSDT) and Hamilton’s principle, the governing partial differential equation of motion is derived under four simply supported boundary conditions. The natural frequencies of the graded honeycomb sandwich plate are obtained by both the Navier method from the governing equation and the finite element model. The results obtained by the two methods are consistent. Based on this, the effects of parameters and graded on the natural frequencies of the functionally graded honeycomb sandwich plate are studied. Finally, the dynamic responses of the functionally graded honeycomb sandwich plate under low-speed impacts are studied. The results obtained in this paper will provide a theoretical basis for further study of the complex dynamics of functionally graded honeycomb structures.
format	article
author	Jun-hua Zhang Bao-juan Dong Bince He Ying Sun
author_facet	Jun-hua Zhang Bao-juan Dong Bince He Ying Sun
author_sort	Jun-hua Zhang
title	Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate
title_short	Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate
title_full	Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate
title_fullStr	Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate
title_full_unstemmed	Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate
title_sort	free vibrations and impact resistance of a functionally graded honeycomb sandwich plate
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/b05d009ef1484a1ca1dc0a184fd2fac8
work_keys_str_mv	AT junhuazhang freevibrationsandimpactresistanceofafunctionallygradedhoneycombsandwichplate AT baojuandong freevibrationsandimpactresistanceofafunctionallygradedhoneycombsandwichplate AT bincehe freevibrationsandimpactresistanceofafunctionallygradedhoneycombsandwichplate AT yingsun freevibrationsandimpactresistanceofafunctionallygradedhoneycombsandwichplate
_version_	1718407728391520256

Free Vibrations and Impact Resistance of a Functionally Graded Honeycomb Sandwich Plate

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