# A modified spectral collocation method for vibration of sandwich beams based on a higher-order layer-wise beam theory

https://mdr.nims.go.jp/datasets/65909d1c-f62f-481d-8ee1-147609db874f

## File

- [peAVNp-1-s2.0-S0263823125000436-main.pdf](https://mdr.nims.go.jp/filesets/1d27267b-efd2-43e2-8cd1-7aef3fb422f3/download) ([Detail](https://mdr.nims.go.jp/filesets/1d27267b-efd2-43e2-8cd1-7aef3fb422f3.md))

## Id

65909d1c-f62f-481d-8ee1-147609db874f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-04-13T13:43:45.468687Z

## Updated at

2025-04-14T07:31:07.368547Z

## Published at

2025-04-14T05:56:20.678657Z

## Doi



## First published url

https://doi.org/10.1016/j.tws.2025.112949

## Date published

2025-01-13

## Recorded date published

2025-4

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: A modified spectral collocation method for vibration of sandwich beams based
    on a higher-order layer-wise beam theory
  title_type: original
  lang: en

## Description

- description: This paper studied vibration characteristics of sandwich beams with
    viscoelastic cores and different boundary conditions. A higher-order layer-wise
    beam theory was presented to describe the displacement field of the sandwich beams
    with viscoelastic cores. The top and bottom layers' transverse shear stresses
    were thought to be quadratic. And the viscoelastic core's transverse shear stress
    was constant. It was believed that the transverse shear stress and displacement
    at the layer interface are continuous. The equations of motion and boundary conditions
    were established using Hamilton's principle. A modified spectral collocation method
    was utilized to solve the equations of motion with various boundary conditions
    by combining the integrated-based spectral collocation method and conventional
    spectral collocation method. The modified method can implement multiple boundary
    conditions at one boundary point. An iterative procedure was utilized to solve
    complex eigenvalue problem with frequency-dependent material properties. The accuracy
    of the proposed method was verified by contrasting the theoretical data with experimental
    and published data. Tensile test was conducted to obtain the Poisson’s ratio of
    adhesive using Digital Image Correlation (DIC). The storage and loss modulus of
    adhesive were measured using Oberst beam. Impact tests were conducted to estimate
    resonant frequencies and loss factors of sandwich beams from Impulse response
    function (IRF). The measured results agreed well with the data calculated using
    the proposed method.
  description_type: abstract
  lang: und

## Creator

- name: Ming Ji
  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: Higher-order layer-wise beam theory
  schema: not_defined
- subject: Viscoelastic core
  schema: not_defined
- subject: Modified spectral collocation method
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Thin-Walled Structures
  issn: '02638231'
  volume: '209'
  article_number: '112949'

## Conference



## Related item



## Funding

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

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## Fileset

- id: 1d27267b-efd2-43e2-8cd1-7aef3fb422f3
  filename: peAVNp-1-s2.0-S0263823125000436-main.pdf
  content_type: application/pdf
  size: 5387083
  md5: 236a5b437cd4b143ae16c3257076bff2

## Thumbnail

fileset_id: 1d27267b-efd2-43e2-8cd1-7aef3fb422f3
filename: peAVNp-1-s2.0-S0263823125000436-main.pdf