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Bending Performance and Failure Behavior of Wooden Sandwich Panels with Corrugated Cores

cris.virtual.author-orcid0000-0001-9101-0981
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid53d035ee-778d-4fef-b6c1-b736047873f2
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.abstract.enWooden sandwich panels with a corrugated core have not been the subject of scientific research so far. The anisotropic properties of the wood make it challenging to form corrugated shapes. Therefore, it is decided to determine the effect of geometric imperfections of the corrugated core made of wood veneers on the stiffness and strength of sandwich panels and the core elasticity modulus. The beams are manufactured in industrial conditions and subjected to three-point bending. The research is carried out in the form of tests and numerical calculations. It is demonstrated that geometric imperfections of the core affect the stiffness and strength of sandwich panels. The modulus of elasticity can reach values lower by up to 37% and the strength by up to 24% compared with reference panels with an ideal, symmetrical core geometry. However, their average linear elasticity modulus (1449 MPa) indicates excellent construction properties. Under the tests, four stages of beam bending are revealed. The last stage means that panels can increase stiffness even after the core is destroyed. The corrugated core's modulus of elasticity is also determined.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Meblarstwa
dc.contributor.authorSmardzewski, Jerzy
dc.contributor.authorKrzyżaniak, Łukasz
dc.contributor.authorWojciechowski, Krzysztof W.
dc.contributor.authorPeliński, Krzysztof
dc.contributor.authorTretiakov, Konstantin V.
dc.contributor.authorNarojczyk, Jakub W.
dc.date.accessioned2026-01-09T11:44:32Z
dc.date.available2026-01-09T11:44:32Z
dc.date.issued2022
dc.description.abstract<jats:sec><jats:label/><jats:p>Wooden sandwich panels with a corrugated core have not been the subject of scientific research so far. The anisotropic properties of the wood make it challenging to form corrugated shapes. Therefore, it is decided to determine the effect of geometric imperfections of the corrugated core made of wood veneers on the stiffness and strength of sandwich panels and the core elasticity modulus. The beams are manufactured in industrial conditions and subjected to three‐point bending. The research is carried out in the form of tests and numerical calculations. It is demonstrated that geometric imperfections of the core affect the stiffness and strength of sandwich panels. The modulus of elasticity can reach values lower by up to 37% and the strength by up to 24% compared with reference panels with an ideal, symmetrical core geometry. However, their average linear elasticity modulus (1449 MPa) indicates excellent construction properties. Under the tests, four stages of beam bending are revealed. The last stage means that panels can increase stiffness even after the core is destroyed. The corrugated core's modulus of elasticity is also determined.</jats:p></jats:sec>
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if1,6
dc.description.number12
dc.description.points70
dc.description.volume259
dc.identifier.doi10.1002/pssb.202200423
dc.identifier.eissn1521-3951
dc.identifier.issn0370-1972
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/6681
dc.languageen
dc.relation.ispartofPhysica Status Solidi (B): Basic Research
dc.relation.pagesart. 2200423
dc.rightsClosedAccess
dc.sciencecloudsend
dc.titleBending Performance and Failure Behavior of Wooden Sandwich Panels with Corrugated Cores
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue12
oaire.citation.volume259