Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1473
Title: The effect of percent foam fill ratio on the energy absorption capacity of axially compressed thin-walled multi-cell square and circular tubes
Authors: Altın, Murat
Güler, Mehmet Ali
Mert, Sinem K.
19122
Keywords: Crashworthiness
Multi-cell tubes
Energy absorption
Thin-walled structure
Crush force efficiency
Specific energy absorption
Issue Date: 2017
Publisher: Pergamon-Elsevier Science Ltd
Source: Altin, M., Güler, M. A., & Mert, S. K. (2017). The effect of percent foam fill ratio on the energy absorption capacity of axially compressed thin-walled multi-cell square and circular tubes. International Journal of Mechanical Sciences, 131, 368-379.
Abstract: In this study, the effect of foam fill ratio on the energy absorption capacity of axially compressed thin-walled multi-cell square and circular tubes is investigated. In the experimental study, Aluminum tubes having circular cross-sections with four different foam fill ratio (11.4%, 22.8%, 34.2%, 100%) were subjected to compression tests under quasi-static test conditions. The finite element (FE) models of these tests were prepared and FE analysis were conducted using LS-DYNA program for validation study. After validating the FE models with real experiments, a total of 24 different multi-cell geometries (6 square empty, 6 square with various foam fill ratio, 6 circular empty and 6 circular with various foam fill ratio) were created. A total of three different wall thicknesses were used for each geometry in the explicit dynamic analyses. It is found out that specific energy absorption (SEA) of foam-filled square design is 5 times larger compared to the empty square design which has minimum SEA. By varying the wall thickness, the SEA and crush force efficiency (CFE) performances of the foam-filled square design can be increased by 87% and 42% respectively. The main goal of this study is to find the best multi-cell design having maximum SEA and CFE. (C) 2017 Elsevier Ltd. All rights reserved.
URI: https://www.sciencedirect.com/science/article/pii/S0020740317310317
https://hdl.handle.net/20.500.11851/1473
ISSN: 0020-7403
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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