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Proceedings Paper

Self-folding structure using light-absorption of polystyrene sheet
Author(s): Yonghee Lee; Maenghyo Cho
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Paper Abstract

The self-folding of polystyrene sheet can be realized by the localized thermal absorption in narrow area, and it is easily achieved by light and black-colored line pattern printing. Lighting to polystyrene sheet provides thermal energy stored in infrared ray to black-colored area except transparent area, then the polystyrene sheet near black-colored area becomes glass transition state. The extreme thermal contraction deformation at black area results in folding deformation of polystyrene sheet. In this paper, various self-folding structure u sing the light-absorption folding technique of polystyrene sheet can be designed and manufactured . For prediction of light-activated folding behavior of polystyrene sheet, the cohesive line element is employed . In the cohesive line element, the additional nodes are defined at folded line, and the discontinued folding angles can be identified and be analyzed from finite element analysis .

Paper Details

Date Published: 11 April 2017
PDF: 6 pages
Proc. SPIE 10165, Behavior and Mechanics of Multifunctional Materials and Composites 2017, 101650L (11 April 2017); doi: 10.1117/12.2259911
Show Author Affiliations
Yonghee Lee, Seoul National Univ. (Korea, Republic of)
Maenghyo Cho, Seoul National Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 10165:
Behavior and Mechanics of Multifunctional Materials and Composites 2017
Nakhiah C. Goulbourne, Editor(s)

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