Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/2869
Title: Investigation of combined effects of cross section, taper angle and cell structure on crashworthiness of multi-cell thin-walled tubes
Authors: Altın, Murat
Kılınçkaya, Ümit
Acar, Erdem
Güler, Mehmet Ali
Keywords: Multi-cell tubes
crashworthiness
crush force efficiency
energy absorption
thin-walled structures
Issue Date: Apr-2019
Publisher: Taylor and Francis Ltd.
Source: Altin, M., Kılınçkaya, Ü., Acar, E., and Güler, M. A. (2019). Investigation of combined effects of cross section, taper angle and cell structure on crashworthiness of multi-cell thin-walled tubes. International Journal of Crashworthiness, 24(2), 121-136.
Abstract: Crash box design has a substantial importance to reduce the fatalities in a frontal crash. In this study, four different types of multi-cell tubes, namely straight-circular, straight-square, tapered-circular and tapered-square geometries, are considered as energy absorbing components. For each type, seven different cell structures are designed, and the crashworthiness of these designs is assessed based on two different metrics: crush force efficiency (CFE) and specific energy absorption (SEA). When the thickness and the taper angle are fixed, the multi-cell design having the best performance is found to have 165% larger CFE and 237% larger SEA compared to the single-cell design having the worst performance. By varying the thickness, the CFE and SEA performances of the best design can be further increased by 5% and 7%, respectively. Similarly, by varying the taper angle, the SEA performances of the best design with varied thickness can further be increased by 4%. HIGHLIGHTS Impact behaviour of several multi-cell straight and tapered tubes are investigated All multi-cell models have larger CFE and SEA values than the single-cell models Tapered-circular tube has the best, straight-square has the worst crush performance CFE of the best multi-cell design is 177% larger than the worst single-cell design SEA of the best multi-cell design is 275% larger than the worst single-cell design
URI: https://hdl.handle.net/20.500.11851/2869
https://www.tandfonline.com/doi/full/10.1080/13588265.2017.1410338
ISSN: 1358-8265
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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