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Foldcore Structures with Origami Initiators for Energy-Absorbing Sandwich Panels

Foldcore Structures with Origami Initiators for Energy-Absorbing Sandwich Panels Origami foldcore structures can be used in thin-walled sandwich panels to provide unique advantages over traditional honeycomb structures. For instance, their continuously connected space is available for flowing through cooling liquid or compact pipeline placement. However, origami foldcores suffer from relatively low-energy absorption. This paper proposes a new design of energy-absorbing foldcore structures for sandwich panels, including the geometric design, experimental tests, numerical parametric study, and theoretical estimation of energy absorption. Origami initiators are introduced to the Miura foldcores to induce a failure mode with more transverse folds, which is not common for regular foldcore structures. As a result, 60% higher energy absorption and tunable load uniformity can be achieved. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Mechanica Solida Sinica Springer Journals

Foldcore Structures with Origami Initiators for Energy-Absorbing Sandwich Panels

Acta Mechanica Solida Sinica , Volume 36 (4) – Aug 1, 2023

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References (26)

Publisher
Springer Journals
Copyright
Copyright © The Chinese Society of Theoretical and Applied Mechanics 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
0894-9166
eISSN
1860-2134
DOI
10.1007/s10338-023-00396-x
Publisher site
See Article on Publisher Site

Abstract

Origami foldcore structures can be used in thin-walled sandwich panels to provide unique advantages over traditional honeycomb structures. For instance, their continuously connected space is available for flowing through cooling liquid or compact pipeline placement. However, origami foldcores suffer from relatively low-energy absorption. This paper proposes a new design of energy-absorbing foldcore structures for sandwich panels, including the geometric design, experimental tests, numerical parametric study, and theoretical estimation of energy absorption. Origami initiators are introduced to the Miura foldcores to induce a failure mode with more transverse folds, which is not common for regular foldcore structures. As a result, 60% higher energy absorption and tunable load uniformity can be achieved.

Journal

Acta Mechanica Solida SinicaSpringer Journals

Published: Aug 1, 2023

Keywords: Thin-walled structures; Sandwich panels; Energy absorption; Origami; Foldcores

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