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An inverse method for design and characterisation of acoustic materials
KTH, School of Engineering Sciences (SCI), Engineering Mechanics.
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Fluid Mechanics and Engineering Acoustics.ORCID iD: 0000-0002-6555-531X
KTH, Superseded Departments (pre-2005), Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0003-1855-5437
2019 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents applications of an inverse method for the design and characterisation of anisotropic elastic material properties of acoustic porous materials. Full field 3D displacements under static surface loads are used as targets in the inverse estimation to fit a material model of an equivalent solid to the measurement data. Test cases of artificial open-cell foams are used, and the accuracy of the results are verified. The method is shown to be able to successfully characterise both isotropic and anisotropic elastic material properties. The paper demonstrates a way to reduce costs by characterising material properties based on the design model without a need for manufacturing and additional experimental tests.

Place, publisher, year, edition, pages
2019. Vol. 304, article id 02002
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-268068DOI: 10.1051/matecconf/201930402002OAI: oai:DiVA.org:kth-268068DiVA, id: diva2:1393536
Conference
MATEC Web of Conferences 304, 02002 (2019)
Funder
Swedish Research Council, 2015-04925Vinnova, 2016-05195EU, Horizon 2020, 723367
Note

QC 20200217

Available from: 2020-02-17 Created: 2020-02-17 Last updated: 2020-02-17Bibliographically approved

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fulltext(854 kB)15 downloads
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File name FULLTEXT01.pdfFile size 854 kBChecksum SHA-512
4be690833dd82b7ded01bd6ebf308b9336678bee2138e0a75c0de2b047fbf9415ba879ed852dde3e8ff70d18fbfb5052c49b82908affead208b059693bc69ee2
Type fulltextMimetype application/pdf

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Publisher's full texthttps://doi.org/10.1051/matecconf/201930402002

Authority records BETA

Mao, HuinaRumpler, RomainGöransson, Peter

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