# Spectral collocation method for free vibration of sandwich plates containing a viscoelastic core

https://mdr.nims.go.jp/datasets/42eb3ec0-f551-4a26-b17b-a79e4bde9d2a

## File

- [2024JI-ComposStruct.pdf](https://mdr.nims.go.jp/filesets/28eee22c-7b8b-48bb-9e49-2bb734ed2074/download) ([Detail](https://mdr.nims.go.jp/filesets/28eee22c-7b8b-48bb-9e49-2bb734ed2074.md))

## Id

42eb3ec0-f551-4a26-b17b-a79e4bde9d2a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-26T23:53:54.560662Z

## Updated at

2024-09-30T07:30:09.317450Z

## Published at

2024-09-30T07:30:10.522178Z

## Doi



## First published url

https://doi.org/10.1016/j.compstruct.2024.118024

## Date published

2024-03-12

## Recorded date published

2024-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Spectral collocation method for free vibration of sandwich plates containing
    a viscoelastic core
  title_type: original
  lang: en

## Description

- description: Viscoelastic constrained layer damping is a simple and efficient method
    for reducing noise, vibration, and fatigue in metal structures. In this work,
    a spectral collocation method utilizing a layer-wise plate theory was established
    to inspect the vibration characteristics of a sandwich plate with a viscoelastic
    core. The displacements of each layer satisfied the Mindlin plate theory. The
    core's transverse shear stress remained constant. The three layers’ transverse
    displacements were assumed to be identical. The displacement fields were reduced
    to nine variables by utilizing the interfaces’ continuity of the displacements.
    The equations of motion were obtained by utilizing Hamilton’s principle. The viscoelastic
    core’s material properties were considered as frequency-dependent. To address
    the complex eigenvalue problem, an iterative algorithm was used. The theoretical
    results were compared with published13theoretical and experimental data for fully
    clamped rectangular sandwich plates to validate the proposed method. The modified
    Oberst beam method was applied by fitting the impulse response function to obtain
    the adhesive’s frequency-dependent storage 16modulus and loss factor. The natural
    frequencies and corresponding loss factors of three sandwich plates with different
    adhesives were measured by conducting impact tests.  The numerical results from
    the present the oretical method agreed well with the measured results.
  description_type: abstract
  lang: und

## Creator

- name: Ming Ji
  role: author
- name: Chao Kang
  role: author
- name: Yu Sekiguchi
  role: author
- name: Masanobu Naito
  role: author
  orcid: https://orcid.org/0000-0001-7198-819X
  organization: National Institute for Materials Science
- name: Chiaki Sato
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Spectral collocation method
  schema: not_defined
- subject: Hamilton’s principle
  schema: not_defined
- subject: Modified Oberst beam method
  schema: not_defined
- subject: Impulse response function (IRF)
  schema: not_defined
- subject: Sandwich plate
  schema: not_defined
- subject: Viscoelastic core
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Composite Structures
  issn: '02638223'
  volume: '337'
  article_number: '118024'

## Conference



## Related item



## Funding

- funder_name: Core Research for Evolutional Science and Technology
- identifier: JPMJCR19J3
  funder_name: Japan Science and Technology Agency

## Instrument



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## Measurement method



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## Fileset

- id: 28eee22c-7b8b-48bb-9e49-2bb734ed2074
  filename: 2024JI-ComposStruct.pdf
  content_type: application/pdf
  size: 4056191
  md5: 6e31a1dcec2239da947b4611fc92bd3e

## Thumbnail

fileset_id: 28eee22c-7b8b-48bb-9e49-2bb734ed2074
filename: 2024JI-ComposStruct.pdf