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Title: Dynamic crushing and energy absorption of sandwich structures with combined geometry shell cores
Authors: Taşdemirci, Alper
Kara, Ali
Turan, Kıvanç
Şahin, Selim
Keywords: Combined geometry shells
Crushing behavior
Energy absorbtion
Micro inertia
Sandwich structures
Issue Date: Jun-2015
Publisher: Elsevier Ltd.
Source: Taşdemirci, A., Kara, A., Turan, K., and Şahin, S. (2015). Dynamic crushing and energy absorption of sandwich structures with combined geometry shell cores. Thin-Walled Structures, 91, 116-128. doi:10.1016/j.tws.2015.02.015
Abstract: Dynamic crushing and energy absorption characteristics of sandwich structures with combined geometry shell cores were investigated experimentally and numerically. The effect of strain rate on the crushing behavior was presented by the crushing tests at quasi-static, intermediate and high strain rate regimes. It was shown that absorbed energy increased with increasing impact velocity. The effect of confinement on crushing behavior was shown by conducting confined experiments at quasi-static and dynamic rates. Higher buckling loads at lower deformation were observed in confined quasi-static crushing due to additional lateral support and friction provided by confinement wall. By using fictitious numerical models with strain rate insensitive material models, the effect of inertia and strain rate on crushing were shown. It was observed that, increase in impact velocity caused increase in inertial effects and strain rate effects were nearly independent from the impact velocity. The effects of multilayering were also investigated numerically.
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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