Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Application of the wave propagation approach to sandwich structures: Vibro-acoustic properties of aluminum honeycomb materials
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
2018 (English)In: Applied Sciences, E-ISSN 2076-3417, Vol. 8, no 1, article id 45Article in journal (Refereed) Published
Abstract [en]

Sandwich structures are manufactured using multiple combinations of materials for core and laminates. The real performances are influenced by variability in the composing layers and even by the uncertainties introduced while bonding them together. Therefore, experimental tests are usually the preferred way to assess the most important parameters required to develop and to characterize the product, the main downsides lying in their cost and time consumption. This work explores a practical application of the wave propagation approach by means of a case study, in which some significant properties of an aluminum honeycomb panel are obtained starting from simple vibro-acoustic tests carried out on beam specimens. After determining the frequency-dependent bending stiffness function, the sound transmission loss is predicted and compared with the experimental results obtained in sound transmission suites. The same vibro-acoustic tests are used to estimate the core shear modulus. Finally, a parametric study is proposed to show how this technique can be effectively used in the early design stage, when producing physical samples is often impossible due to time and money constraints. The method proved to be a reliable and powerful tool in all the tested applications, providing good results with limited computational effort.

Place, publisher, year, edition, pages
MDPI AG , 2018. Vol. 8, no 1, article id 45
Keywords [en]
Bending stiffness, Bending wave propagation, Sandwich panel, Sound transmission loss
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-223204DOI: 10.3390/app8010045ISI: 000424388800045Scopus ID: 2-s2.0-85039958881OAI: oai:DiVA.org:kth-223204DiVA, id: diva2:1186068
Note

Export Date: 13 February 2018; Article; Correspondence Address: Piana, E.A.; Department of Mechanical and Industrial Engineering, University of BresciaItaly; email: edoardo.piana@unibs.it. QC 20180227

Available from: 2018-02-27 Created: 2018-02-27 Last updated: 2018-03-05Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Carlsson, Ulf
By organisation
Aeronautical and Vehicle Engineering
In the same journal
Applied Sciences
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf