Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4415
Title: The impact responses and the finite element modeling of layered trapezoidal corrugated aluminum core and aluminum sheet interlayer sandwich structures
Authors: Kılıçaslan, Cenk
Güden, Mustafa
Odacı, İsmet Kutlay
Taşdemirci, Alper
Kılıçaslan, Cenk
Güden, Mustafa
Odacı, İsmet Kutlay
Taşdemirci, Alper
Izmir Institute of Technology. Mechanical Engineering
Keywords: Quasi-static
LS-DYNA
Sandwich panels
Aluminum
Issue Date: 2013
Publisher: Elsevier Ltd.
Source: Kılıçaslan, C., Güden, M., Odacı, İ. K., and Taşdemirci, A. (2013). The impact responses and the finite element modeling of layered trapezoidal corrugated aluminum core and aluminum sheet interlayer sandwich structures. Materials and Design, 46, 121-133. doi:10.1016/j.matdes.2012.09.059
Abstract: The impact responses of brazed and adhesively bonded layered 1050 H14 trapezoidal corrugated aluminum core and aluminum sheet interlayer sandwich panels with 3003 and 1050 H14 aluminum alloy face sheets were investigated in a drop weight tower using spherical, flat and conical end striker tips. The full geometrical models of the tests were implemented using the LS-DYNA. The panels tested with spherical and flat striker tips were not penetrated and experienced slightly higher deformation forces and energy absorptions in 0°/90° corrugated layer orientation than in 0°/0° orientation. However, the panels impacted using a conical striker tip were penetrated/perforated and showed comparably smaller deformation forces and energy absorptions, especially in 0°/90° layer orientation. The simulation and experimental force values were shown to reasonably agree with each other at the large extent of deformation and revealed the progressive fin folding of corrugated core layers and bending of interlayer sheets as the main deformation mechanisms. The experimentally and numerically determined impact velocity sensitivity of the tested panels was attributed to the micro inertial effects which increased the critical buckling loads of fin layers at increasingly high loading rates.
URI: http://doi.org/10.1016/j.matdes.2012.09.059
http://hdl.handle.net/11147/4415
ISSN: 0264-1275
1873-4197
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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