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Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study

In the present work, the nonlinear vibration behavior of elastic-viscoelastic-elastic sandwich (EVES) beams is studied. A finite element (FE) equation taking intoaccount the transverse compression deformation of the viscoelastic core for the EVES beams is derived. In order toaccurately characterize...

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Autores principales: Huang, Zhicheng, Pan, Jinbo, Yang, Ziheng, Wang, Xingguo, Chu, Fulei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709079/
https://www.ncbi.nlm.nih.gov/pubmed/34947343
http://dx.doi.org/10.3390/ma14247751
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author Huang, Zhicheng
Pan, Jinbo
Yang, Ziheng
Wang, Xingguo
Chu, Fulei
author_facet Huang, Zhicheng
Pan, Jinbo
Yang, Ziheng
Wang, Xingguo
Chu, Fulei
author_sort Huang, Zhicheng
collection PubMed
description In the present work, the nonlinear vibration behavior of elastic-viscoelastic-elastic sandwich (EVES) beams is studied. A finite element (FE) equation taking intoaccount the transverse compression deformation of the viscoelastic core for the EVES beams is derived. In order toaccurately characterize the frequency-dependent feature of the viscoelastic materials layer, athird-order seven-parameter Biot model isused. A 2-node 8-DOF element is established to discretize the EVES beams. The experimental testing onEVES beams validates the numerical predication of the FE model. Numerical and analytical investigations are carried on a series of EVES beams with different thicknesses. The results indicate that the presented FE model has better accuracy in predicting the natural frequency of the sandwich beams, and in predicting damping, the accuracy is related to the thickness of each layer. The results of this paper have important reference values for the design and optimization of the viscoelastic sandwich structure.
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spelling pubmed-87090792021-12-25 Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study Huang, Zhicheng Pan, Jinbo Yang, Ziheng Wang, Xingguo Chu, Fulei Materials (Basel) Article In the present work, the nonlinear vibration behavior of elastic-viscoelastic-elastic sandwich (EVES) beams is studied. A finite element (FE) equation taking intoaccount the transverse compression deformation of the viscoelastic core for the EVES beams is derived. In order toaccurately characterize the frequency-dependent feature of the viscoelastic materials layer, athird-order seven-parameter Biot model isused. A 2-node 8-DOF element is established to discretize the EVES beams. The experimental testing onEVES beams validates the numerical predication of the FE model. Numerical and analytical investigations are carried on a series of EVES beams with different thicknesses. The results indicate that the presented FE model has better accuracy in predicting the natural frequency of the sandwich beams, and in predicting damping, the accuracy is related to the thickness of each layer. The results of this paper have important reference values for the design and optimization of the viscoelastic sandwich structure. MDPI 2021-12-15 /pmc/articles/PMC8709079/ /pubmed/34947343 http://dx.doi.org/10.3390/ma14247751 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Huang, Zhicheng
Pan, Jinbo
Yang, Ziheng
Wang, Xingguo
Chu, Fulei
Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study
title Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study
title_full Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study
title_fullStr Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study
title_full_unstemmed Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study
title_short Transverse Vibration of Viscoelastic Sandwich Structures: Finite Element Modeling and Experimental Study
title_sort transverse vibration of viscoelastic sandwich structures: finite element modeling and experimental study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709079/
https://www.ncbi.nlm.nih.gov/pubmed/34947343
http://dx.doi.org/10.3390/ma14247751
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