Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/13677
Title: High strain-rate deformation analysis of open-cell aluminium foam
Authors: Mauko, Anja
Sarıkaya, Mustafa
Güden, Mustafa
Duarte, Isabel
Borovinšek, Matej
Vesenjak, Matej
Ren, Zoran
Keywords: Computer simulation
Digital image correlation
Direct impact hopkinson bar
High-strain rate
Micro-computed tomography
Open-cell aluminium foam
Issue Date: 2023
Publisher: Elsevier
Abstract: This study investigated the high-strain rate mechanical properties of open-cell aluminium foam M-pore®. While previous research has examined the response of this type of foam under quasi-static and transitional dynamic loading conditions, there is a lack of knowledge about its behaviour under higher strain rates (transitional and shock loading regimes). To address this gap in understanding, cylindrical open-cell foam specimens were tested using a modified Direct Impact Hopkinson Bar (DIHB) apparatus over a wide range of strain rates, up to 93 m/s. The results showed a strong dependency of the foam's behaviour on the loading rate, with increased plateau stress and changes in deformation front formation and propagation at higher strain rates. The internal structure of the specimens was examined using X-ray micro-computed tomography (mCT). The mCT images were used to build simplified 3D numerical models of analysed aluminium foam specimens that were used in computational simulations of their behaviour under all experimentally tested loading regimes using LS-DYNA software. The overall agreement between the experimental and computational results was good enough to validate the built numerical models capable of correctly simulating the mechanical response of analysed aluminium foam at different loading rates. © 2023 The Authors
URI: https://doi.org/10.1016/j.jmrt.2023.05.280
https://hdl.handle.net/11147/13677
ISSN: 2238-7854
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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