Townsend, Scott, Adams, Rhosslyn, Robinson, Michael, Hanna, Benjamin and Theobald, Peter ![]() ![]() |
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Abstract
Honeycomb structures display extraordinary stiffness-to-weight ratio when loaded in the out-of-plane direction. When realized using thermoplastic polyurethane (TPU), the structures offer the potential for repeatable and high specific energy absorption. Varying the cell size and wall thickness of TPU honeycombs facilitates changes in stiffness magnitude, though affords only modest capacity to alter the shape of the stress-strain curve. 3D printing facilitates advanced design exploration, beyond that of straight walls. Origami fold patterns have demonstrated the ability to influence the buckling behavior of tubular structures. Here we demonstrate the incorporation of origami folds into square honeycombs. The fold parameters facilitate significant tailoring of the stress-strain curve, allowing a range of profiles from quasi-rectangular to quasi-linear to be achieved; such structures can find applications in situation-specific energy absorption scenarios.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Engineering |
Publisher: | Elsevier |
ISSN: | 0264-1275 |
Date of First Compliant Deposit: | 14 July 2020 |
Date of Acceptance: | 25 June 2020 |
Last Modified: | 05 Jan 2024 02:15 |
URI: | https://orca.cardiff.ac.uk/id/eprint/133432 |
Citation Data
Cited 26 times in Scopus. View in Scopus. Powered By Scopus® Data
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