Cargando…

Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate

The vibrational properties and mechanism of a foam-filling short basalt fiber reinforced epoxy resin composite beetle elytron plate (EBEP(fc)) were studied by experiments and the finite element (FE) method in this paper. The experimental results showed that the natural frequencies of the first two m...

Descripción completa

Detalles Bibliográficos
Autores principales: Chen, Jinxiang, Du, Shengchen, He, Chaochao, Zhu, Nanxing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653980/
https://www.ncbi.nlm.nih.gov/pubmed/36363340
http://dx.doi.org/10.3390/ma15217748
_version_ 1784828815682306048
author Chen, Jinxiang
Du, Shengchen
He, Chaochao
Zhu, Nanxing
author_facet Chen, Jinxiang
Du, Shengchen
He, Chaochao
Zhu, Nanxing
author_sort Chen, Jinxiang
collection PubMed
description The vibrational properties and mechanism of a foam-filling short basalt fiber reinforced epoxy resin composite beetle elytron plate (EBEP(fc)) were studied by experiments and the finite element (FE) method in this paper. The experimental results showed that the natural frequencies of the first two modes of the EBEP(fc) were very close to those of a foam-filling short basalt fiber reinforced epoxy resin composite honeycomb plate (HP(fc)), while the vibrational response of the EBEP(fc) was weaker than that of the HP(fc), and the damping ratio was improved; the improvement of the second mode was significant. Therefore, the EBEP(fc) had a better vibration reduction performance and could directly replace the HP(fc) in engineering applications. The FE results showed that foam filling enhanced the shear stiffness of the whole core structure, and had a more obvious effect on the shear stiffness of the HP(fc). Meanwhile, it particularly reduced the shear force proportions and contributed to the protection of the skin and core skeleton. The mechanisms of the vibrational characteristics of these two types of sandwich plates were explored from the perspective of the equivalent cross-sectional area, shear stiffness, shear strain energy per unit volume and friction. These results provide a valuable reference for the promotion and application of EBEP(fc) in the fields of vibration reduction and seismic resistance.
format Online
Article
Text
id pubmed-9653980
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-96539802022-11-15 Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate Chen, Jinxiang Du, Shengchen He, Chaochao Zhu, Nanxing Materials (Basel) Article The vibrational properties and mechanism of a foam-filling short basalt fiber reinforced epoxy resin composite beetle elytron plate (EBEP(fc)) were studied by experiments and the finite element (FE) method in this paper. The experimental results showed that the natural frequencies of the first two modes of the EBEP(fc) were very close to those of a foam-filling short basalt fiber reinforced epoxy resin composite honeycomb plate (HP(fc)), while the vibrational response of the EBEP(fc) was weaker than that of the HP(fc), and the damping ratio was improved; the improvement of the second mode was significant. Therefore, the EBEP(fc) had a better vibration reduction performance and could directly replace the HP(fc) in engineering applications. The FE results showed that foam filling enhanced the shear stiffness of the whole core structure, and had a more obvious effect on the shear stiffness of the HP(fc). Meanwhile, it particularly reduced the shear force proportions and contributed to the protection of the skin and core skeleton. The mechanisms of the vibrational characteristics of these two types of sandwich plates were explored from the perspective of the equivalent cross-sectional area, shear stiffness, shear strain energy per unit volume and friction. These results provide a valuable reference for the promotion and application of EBEP(fc) in the fields of vibration reduction and seismic resistance. MDPI 2022-11-03 /pmc/articles/PMC9653980/ /pubmed/36363340 http://dx.doi.org/10.3390/ma15217748 Text en © 2022 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
Chen, Jinxiang
Du, Shengchen
He, Chaochao
Zhu, Nanxing
Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate
title Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate
title_full Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate
title_fullStr Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate
title_full_unstemmed Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate
title_short Vibrational Characteristics of a Foam-Filled Short Basalt Fiber Reinforced Epoxy Resin Composite Beetle Elytron Plate
title_sort vibrational characteristics of a foam-filled short basalt fiber reinforced epoxy resin composite beetle elytron plate
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653980/
https://www.ncbi.nlm.nih.gov/pubmed/36363340
http://dx.doi.org/10.3390/ma15217748
work_keys_str_mv AT chenjinxiang vibrationalcharacteristicsofafoamfilledshortbasaltfiberreinforcedepoxyresincompositebeetleelytronplate
AT dushengchen vibrationalcharacteristicsofafoamfilledshortbasaltfiberreinforcedepoxyresincompositebeetleelytronplate
AT hechaochao vibrationalcharacteristicsofafoamfilledshortbasaltfiberreinforcedepoxyresincompositebeetleelytronplate
AT zhunanxing vibrationalcharacteristicsofafoamfilledshortbasaltfiberreinforcedepoxyresincompositebeetleelytronplate