22 March 2018 Buckling behavior of origami unit cell facets under compressive loads
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Origami structures as cores for sandwich structures are designed to withstand the compressive loads and to dissipate compressive energy. The deformation of the origami panels and the unit cell facets are the primary factors behind the compressive energy dissipation in origami structures. During the loading stage, the origami structures deform through the folding and unfolding process of the unit cell facets, and also through the plastic deformation of the facets. This work presents a numerical study of the buckling behavior of different origami unit cell elements under compressive loading. The studied origami configurations were Miura and Ron-Resch-like origami structures. Finite element package was used to model the origami structures. The study investigated the buckling behavior of the unit cell facets of two types of origami structures Miura origami and Ron-Resch-Like origami structures. The simulation was conducted using ANSYS finite element software, in which the model of the unit cell represented by shell elements, and the eigenvalues buckling solver was used to predict the theoretical buckling of the unit cell elements.
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Mohamed Ali Emhmed Kshad, Mohamed Ali Emhmed Kshad, Hani E. Naguib, Hani E. Naguib, "Buckling behavior of origami unit cell facets under compressive loads", Proc. SPIE 10596, Behavior and Mechanics of Multifunctional Materials and Composites XII, 105960O (22 March 2018); doi: 10.1117/12.2301246; https://doi.org/10.1117/12.2301246

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