Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4131
Title: Experimental and numerical studies on the quasi-static and dynamic crushing responses of multi-layer trapezoidal aluminum corrugated sandwiches
Authors: Kılıçaslan, Cenk
Güden, Mustafa
Kutlay Odacı, İsmet
Taşdemirci, Alper
Keywords: Corrugated
Compression
Simulation
Multilayers
Sandwich
Issue Date: May-2014
Publisher: Elsevier Ltd.
Source: Kılıçaslan, C., Güden, M., Odacı, İ. K., & Taşdemirci, A. (2014). Experimental and numerical studies on the quasi-static and dynamic crushing responses of multi-layer trapezoidal aluminum corrugated sandwiches. Thin-Walled Structures, 78, 70–78.
Abstract: The axial crushing responses of bonded and brazed multi-layer 1050 H14 trapezoid alaluminum corru- gated core (fin) sandwich structures, with and without aluminum interlayer sheets in 0°/0° and 0°/90° core orientations, were both experimentally and numerically investigated at quasi-static and dynamic strain rates. Multi-layering the core layers decreased the buckling stress and increased the densification strain. The experimental and simulation compression stress–strain curves showed reasonable agree-ments with each other. Two main crushing modes were observed experimentally and numerically: the progressive fin folding and the shearing interlayer aluminum sheets. Both, the simulation and experimental buckling and post-buckling stresses increased when the interlayer sheets were constraint laterally. The multi-layer samples without interlayer sheets in 0°/90° core orientation exhibited higher buckling stresses than the samples in 0°/0° core orientation. The increased buckling stress of 0°/0° oriented core samples without interlayer sheets at high strain rate was attributed to the micro-inertial effects which led to increased bending forces at higher impact velocities.
URI: http://dx.doi.org/10.1016/j.tws.2014.01.017
http://hdl.handle.net/11147/4131
ISSN: 0263-8231
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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