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Folding photopolymerized origami sheets by post-curing

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Folding photopolymerized origami sheets by post-curing

He, Xiaodong, Matte, Christopher-Denny and Kwok, Tsz-Ho (2021) Folding photopolymerized origami sheets by post-curing. SN Applied Sciences, 3 (1).

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Official URL: https://doi.org/10.1007/s42452-020-04018-w

Abstract

The paper presents a novel manufacturing approach to fabricate origami based on 3D printing utilizing digital light processing. Specifically, we propose to leave part of the model uncured during the printing step, and then cure it in the post-processing step to set the shape in a folded configuration. While the cured regions in the first step try to regain their unfolded shape, the regions cured in the second step attempt to keep their folded shape. As a result, the final shape is obtained when both regions’ stresses reach equilibrium. Finite element analysis is performed in ANSYS to obtain the stress distribution on common hinge designs, demonstrating that the square-hinge has a lower maximum principal stress than elliptical and triangle hinges. Based on the square-hinge and rectangular cavity, two variables—the hinge width and the cavity height—are selected as principal variables to construct an empirical model with the final folding angle. In the end, experimental verification shows that the developed method is valid and reliable to realize the proposed deformation and 3D development of 2D hinges.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Mechanical, Industrial and Aerospace Engineering
Item Type:Article
Refereed:Yes
Authors:He, Xiaodong and Matte, Christopher-Denny and Kwok, Tsz-Ho
Journal or Publication:SN Applied Sciences
Date:13 January 2021
Digital Object Identifier (DOI):doi10.1007/s42452-020-04018-w
ID Code:992240
Deposited By: Tsz Ho Kwok
Deposited On:01 Jun 2023 15:37
Last Modified:01 Jun 2023 15:37
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