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Quasi-static and impact behaviour of foam-filled graded auxetic panel.

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Title: Quasi-static and impact behaviour of foam-filled graded auxetic panel.
Authors: Novak, Nejc1 (AUTHOR) n.novak@um.si, Al-Rifaie, Hasan2 (AUTHOR), Airoldi, Alessandro3 (AUTHOR), Krstulović-Opara, Lovre4 (AUTHOR), Łodygowski, Tomasz2 (AUTHOR), Ren, Zoran1 (AUTHOR), Vesenjak, Matej1 (AUTHOR)
Source: International Journal of Impact Engineering. Aug2023, Vol. 178, pN.PAG-N.PAG. 1p.
Subjects: Poisson's ratio, Auxetic materials, Foam, Deformations (Mechanics), Aluminum sheets, Urethane foam, Strains & stresses (Mechanics)
Abstract: • The auxetic panels were built by corrugating and glueing aluminium sheets. • Detailed quasi-static and dynamic drop tests were conducted and compared with a non-linear computational model. • The stress-strain relationships, deformation patterns, specific energy absorption, crash force efficiency and Poisson's ratio were comprehensively evaluated. • The developed computational models successfully describe mechanical and deformation behaviour and can be used for future virtual testing of other configurations. Cellular structures (in general) and auxetic topologies (in particular) have excellent energy-dissipation characteristics and can be used as lightweight impact-energy absorbers. This paper aims to experimentally and computationally examine the behaviour of novel re-entrant auxetic graded aluminium panels filled with polyurethane foam in an auxetic pattern. The performance is compared with 3 non-graded, 1 graded and 2 foam-filled graded panels. The 6 compared auxetic panels share the same basic geometry but vary in the sheet thickness and the addition of polyurethane foam. The auxetic panels were built by corrugating and gluing 12 aluminium sheets. The material properties of the used aluminium sheets and foam were determined with standard mechanical testing. Detailed quasi-static and dynamic drop tests were conducted and compared with a non-linear computational model. The stress-strain relationships, deformation patterns, specific energy absorption, crash force efficiency and Poisson's ratio were comprehensively evaluated. Foam-filled panels revealed higher specific energy absorption and more stable deformation than non-filled panels. The developed computational models successfully describe mechanical and deformation behaviour and can be used for future virtual testing of other configurations. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Impact Engineering is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 163868189
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Quasi-static and impact behaviour of foam-filled graded auxetic panel.
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  Data: <searchLink fieldCode="AR" term="%22Novak%2C+Nejc%22">Novak, Nejc</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> n.novak@um.si</i><br /><searchLink fieldCode="AR" term="%22Al-Rifaie%2C+Hasan%22">Al-Rifaie, Hasan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Airoldi%2C+Alessandro%22">Airoldi, Alessandro</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Krstulović-Opara%2C+Lovre%22">Krstulović-Opara, Lovre</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Łodygowski%2C+Tomasz%22">Łodygowski, Tomasz</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ren%2C+Zoran%22">Ren, Zoran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vesenjak%2C+Matej%22">Vesenjak, Matej</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Impact+Engineering%22">International Journal of Impact Engineering</searchLink>. Aug2023, Vol. 178, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Poisson's+ratio%22">Poisson's ratio</searchLink><br /><searchLink fieldCode="DE" term="%22Auxetic+materials%22">Auxetic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Foam%22">Foam</searchLink><br /><searchLink fieldCode="DE" term="%22Deformations+%28Mechanics%29%22">Deformations (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+sheets%22">Aluminum sheets</searchLink><br /><searchLink fieldCode="DE" term="%22Urethane+foam%22">Urethane foam</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • The auxetic panels were built by corrugating and glueing aluminium sheets. • Detailed quasi-static and dynamic drop tests were conducted and compared with a non-linear computational model. • The stress-strain relationships, deformation patterns, specific energy absorption, crash force efficiency and Poisson's ratio were comprehensively evaluated. • The developed computational models successfully describe mechanical and deformation behaviour and can be used for future virtual testing of other configurations. Cellular structures (in general) and auxetic topologies (in particular) have excellent energy-dissipation characteristics and can be used as lightweight impact-energy absorbers. This paper aims to experimentally and computationally examine the behaviour of novel re-entrant auxetic graded aluminium panels filled with polyurethane foam in an auxetic pattern. The performance is compared with 3 non-graded, 1 graded and 2 foam-filled graded panels. The 6 compared auxetic panels share the same basic geometry but vary in the sheet thickness and the addition of polyurethane foam. The auxetic panels were built by corrugating and gluing 12 aluminium sheets. The material properties of the used aluminium sheets and foam were determined with standard mechanical testing. Detailed quasi-static and dynamic drop tests were conducted and compared with a non-linear computational model. The stress-strain relationships, deformation patterns, specific energy absorption, crash force efficiency and Poisson's ratio were comprehensively evaluated. Foam-filled panels revealed higher specific energy absorption and more stable deformation than non-filled panels. The developed computational models successfully describe mechanical and deformation behaviour and can be used for future virtual testing of other configurations. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Impact Engineering is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=163868189
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.ijimpeng.2023.104606
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Poisson's ratio
        Type: general
      – SubjectFull: Auxetic materials
        Type: general
      – SubjectFull: Foam
        Type: general
      – SubjectFull: Deformations (Mechanics)
        Type: general
      – SubjectFull: Aluminum sheets
        Type: general
      – SubjectFull: Urethane foam
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
    Titles:
      – TitleFull: Quasi-static and impact behaviour of foam-filled graded auxetic panel.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Novak, Nejc
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            NameFull: Al-Rifaie, Hasan
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            NameFull: Airoldi, Alessandro
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            NameFull: Krstulović-Opara, Lovre
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            NameFull: Łodygowski, Tomasz
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            NameFull: Ren, Zoran
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            NameFull: Vesenjak, Matej
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          Dates:
            – D: 01
              M: 08
              Text: Aug2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 0734743X
          Numbering:
            – Type: volume
              Value: 178
          Titles:
            – TitleFull: International Journal of Impact Engineering
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