An experimental and numerical investigation of the effects of geometry and spot welds on the crashworthiness of vehicle thin-walled structures

Basit Öğe Kaydı
dc.authorid0000-0002-1968-0291en_US
dc.contributor.authorDemirci, Emre
dc.contributor.authorYıldız, Ali Rıza
dc.date.accessioned2021-03-20T20:13:13Z
dc.date.available2021-03-20T20:13:13Z
dc.date.issued2018
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractThis paper aims to develop a new crash box with improved crashworthiness at reduced cost and weight as a base design for use in the automotive industry. Firstly, a baseline crash box model as presently used by the automotive industry was comprehensively examined by numerical crash analysis using Ls-Dyna software.. Considering the initial design geometry, forty-five different crash box designs were developed by making changes in the geometry and wall thickness of the thin walled structures. The effects of the changes in wall thickness and geometry in alternative crash box designs on crash performances such as total energy absorption, peak crush force, mean crush force, specific energy absorption and crush force efficiency were investigated. The optimum crash box design obtained numerically was validated experimentally by means of the drop tower impact system. The numerical crash analysis results clearly agree with the experimental test results. In this study, a new crash box design at a lower cost and performing better in crashes compared with the other forty-six designs has been obtained and can be used in the automotive industry as an energy absorber. The results have revealed that crash box geometry, as well as the number and position of the spot welds and sheet-metal thickness have an important effect on crash performance, weight and cost of the crash boxes.en_US
dc.description.sponsorshipTurkish Ministry of Science, Industry and TechnologyMinistry of Science, Industry & Technology - Turkey; TOKSAN RD Center [01348.STZ.2012-1]en_US
dc.description.sponsorshipThis study was funded by the Turkish Ministry of Science, Industry and Technology and TOKSAN R&D Center within the scope of the SAN-TEZ project 01348.STZ.2012-1.en_US
dc.identifier.doi10.3139/120.111187en_US
dc.identifier.endpage561en_US
dc.identifier.issn0025-5300
dc.identifier.issue6en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage553en_US
dc.identifier.urihttp://doi.org/10.3139/120.111187
dc.identifier.urihttps://hdl.handle.net/20.500.12885/820
dc.identifier.volume60en_US
dc.identifier.wosWOS:000451930900002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorDemirci, Emre
dc.language.isoenen_US
dc.publisherCarl Hanser Verlagen_US
dc.relation.ispartofMaterials Testingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCrash boxen_US
dc.subjectthin-walled structureen_US
dc.subjectspot welden_US
dc.subjectfinite element analysisen_US
dc.subjectcrashworthinessen_US
dc.titleAn experimental and numerical investigation of the effects of geometry and spot welds on the crashworthiness of vehicle thin-walled structuresen_US
dc.typeArticleen_US

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