Crashworthiness of graded lattice structure filled thin-walled tubes under multiple impact loadings

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dc.authoridBaykasoglu, Cengiz / 0000-0001-7583-7655
dc.authoridCetin, Erhan / 0000-0001-5551-6934
dc.authorwosidBaykasoglu, Cengiz / AAS-8420-2020
dc.authorwosidCetin, Erhan / AAL-8474-2020
dc.contributor.authorÇetin, Erhan
dc.contributor.authorBaykasoğlu, Cengiz
dc.date.accessioned2021-11-01T15:03:04Z
dc.date.available2021-11-01T15:03:04Z
dc.date.issued2020
dc.department[Belirlenecek]
dc.description.abstractThe objective of this study is to investigate the crashworthiness performances of graded lattice structure filled tubes (GLSFTs) under multiple impact loadings. Different graded body-centered cubic aluminum lattice structures are taken into account in the hybrid tube designs by considering different draft angles and base diameters, and the crashworthiness of those structures are examined by using the validated nonlinear finite element method. The crashworthiness performances of the GLSFTs are also compared with the uniform lattice structure filled tubes (ULSFTs) with the same weights to show the efficiency of GLSFTs by considering several crash worthiness indicators (e.g., initial crush force (ICF), peak crush force (PCF), mean crush force (MCF) and specific energy absorption (SEA)). The results revealed that the graded lattice structure designs enable to obtain variable stiffness throughout the length of hybrid tubes and make possible more folds to be formed without global bending, thus provide significantly better energy absorption performance than their uniform counterparts, especially under oblique loadings. Particularly, the results showed that the GLSFTs can have up to 2 times lower ICF and 3.3 times higher SEA values than that of ULSFTs. The results also revealed that the GLSFTs can absorb up to 146% higher impact energy than the sum of energy absorption of their individual components, and a significant improvement in energy absorption performance of GLSFT can be obtained with appropriate selection of design parameters. Hence, GLSFTs can be recommended as passive protection elements in a broad range of energy absorption applications.
dc.description.sponsorshipScientific Research Projects Governing Unit of Hitit UniversityHitit University [MUH19004.18.001]en_US
dc.description.sponsorshipThis work was supported by the Scientific Research Projects Governing Unit of Hitit University, project No: MUH19004.18.001.en_US
dc.identifier.doi10.1016/j.tws.2020.106849
dc.identifier.issn0263-8231
dc.identifier.issn1879-3223
dc.identifier.scopus2-s2.0-85086460470
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.tws.2020.106849
dc.identifier.urihttps://hdl.handle.net/11491/6946
dc.identifier.volume154en_US
dc.identifier.wosWOS:000565523100008
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorBaykasoğlu, Cengiz
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofThin-Walled Structures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectThin-walled tubesen_US
dc.subjectGraded lattice structuresen_US
dc.subjectHybrid structuresen_US
dc.subjectEnergy absorptionen_US
dc.subjectFinite element modelen_US
dc.titleCrashworthiness of graded lattice structure filled thin-walled tubes under multiple impact loadings
dc.typeArticle

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