Synclastic Behavior of the Auxetic Core for Furniture Panels

cris.lastimport.scopus2025-10-23T06:57:43Z
cris.virtual.author-orcid0000-0001-9101-0981
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid53d035ee-778d-4fef-b6c1-b736047873f2
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enThe cores of honeycomb panels are usually made of hexagonal cells. Due to their structure, they create anticlastic surfaces that are difficult to use in furniture design. Synclastic surfaces in lightweight sandwich panels are typically associated with auxetic cores characterized by a negative Poisson’s ratio. This study aimed to transform the hexagonal cell cores into cells with a negative or positive Poisson’s ratio (NPR, PPR), enabling these cores to form synclastic surfaces. New core structures for synclastic furniture sandwich honeycomb panels were modeled numerically and experimentally. It has been demonstrated that reentrant cells with NPR create synclastic surfaces, and new shapes of core cells, created by transforming hexagonal cells with PPR, also enable the formation of synclastic surfaces. Cores’ synclasticity was assessed in two orthogonal planes using physical models and Finite Element Analysis (FEA). A new and original discovery is the demonstration that not only auxetic but also modified hexagonal cells with Poisson’s ratios of 𝜈𝑥𝑦 = 0.545 and 𝜈𝑦𝑥 = 0.512, respectively, exhibit excellent synclastic properties. The agreement between FEA and experiment was very high. The results show that not only NPR but also cell topology provides a practical route to the synclastic formation of cores without the use of auxetic materials.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Meblarstwa
dc.contributor.authorSmardzewski, Jerzy
dc.contributor.authorSłonina, Michał
dc.date.access2025-10-09
dc.date.accessioned2025-10-09T08:01:58Z
dc.date.available2025-10-09T08:01:58Z
dc.date.copyright2025-09-30
dc.date.issued2025
dc.description.abstract<jats:p>The cores of honeycomb panels are usually made of hexagonal cells. Due to their structure, they create anticlastic surfaces that are difficult to use in furniture design. Synclastic surfaces in lightweight sandwich panels are typically associated with auxetic cores characterized by a negative Poisson’s ratio. This study aimed to transform the hexagonal cell cores into cells with a negative or positive Poisson’s ratio (NPR, PPR), enabling these cores to form synclastic surfaces. New core structures for synclastic furniture sandwich honeycomb panels were modeled numerically and experimentally. It has been demonstrated that reentrant cells with NPR create synclastic surfaces, and new shapes of core cells, created by transforming hexagonal cells with PPR, also enable the formation of synclastic surfaces. Cores’ synclasticity was assessed in two orthogonal planes using physical models and Finite Element Analysis (FEA). A new and original discovery is the demonstration that not only auxetic but also modified hexagonal cells with Poisson’s ratios of νxy= 0.545 and νyx = 0.512, respectively, exhibit excellent synclastic properties. The agreement between FEA and experiment was very high. The results show that not only NPR but also cell topology provides a practical route to the synclastic formation of cores without the use of auxetic materials.</jats:p>
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if2,5
dc.description.number19
dc.description.points100
dc.description.versionfinal_published
dc.description.volume15
dc.identifier.doi10.3390/app151910614
dc.identifier.eissn2076-3417
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5320
dc.identifier.weblinkhttps://www.mdpi.com/2076-3417/15/19/10614
dc.languageen
dc.relation.ispartofApplied Sciences (Switzerland)
dc.relation.pagesart. 10614
dc.rightsCC-BY
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enpaper
dc.subject.enhoneycomb
dc.subject.enauxetic
dc.subject.ensynclastic
dc.subject.enFEM
dc.titleSynclastic Behavior of the Auxetic Core for Furniture Panels
dc.title.volumeSpecial Issue International Conference Wood Science and Engineering in the Third Millennium–ICWSE 2025
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue19
oaire.citation.volume15