Dynamic behaviour of honeycombs under mixed shear-compression loading: Experiments and analysis of combined effects of loading angle and cells in-plane orientation
Autor: | Fahmi Chaari, R. Tounsi, Gregory Haugou, Eric Markiewicz, Bassem Zouari |
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Přispěvatelé: | Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), Université de Valenciennes et du Hainaut-Cambrésis (UVHC)-Centre National de la Recherche Scientifique (CNRS)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS) |
Rok vydání: | 2016 |
Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology 0203 mechanical engineering Aluminium Energy absorption Aluminium alloy Honeycomb General Materials Science Composite material Applied Mathematics Mechanical Engineering [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 021001 nanoscience & nanotechnology Condensed Matter Physics In plane 020303 mechanical engineering & transports chemistry Shear (geology) Mechanics of Materials Modeling and Simulation visual_art visual_art.visual_art_medium 0210 nano-technology Extensometer |
Zdroj: | International Journal of Solids and Structures International Journal of Solids and Structures, Elsevier, 2016, 80, pp.501-511. ⟨10.1016/j.ijsolstr.2015.10.010⟩ |
ISSN: | 0020-7683 |
Popis: | International audience; Cellular materials such as aluminium honeycombs combine lightweight challenges with high mechanical performance for crash energy absorption regulations. This paper investigates experimentally the dynamic behaviour of an aluminium alloy honeycomb under mixed shear-compression loading with a special attention on the combined effects between the cells in-plane orientation and the loading angles. An improvement of an existing experimental SHPB set-up is proposed and an original measurement technique based on an electro optical extensometer is used to overcome a separation phenomenon observed during the test. A significant effect of the loading angle ψ is reported in the crushing responses. The in-plane orientation angle β effects become more significant when the loading angle increases. An investigation of collapse mechanisms is also presented. Three deforming pattern modes are identified and it is shown that their distribution is related to the combined effects of the in-plane orientation angle β and the loading angle ψ. |
Databáze: | OpenAIRE |
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