| id |
caadria2021_144 |
| authors |
Zhu, Lufeng, Wibranek, Bastian and Tessmann, Oliver |
| year |
2021 |
| title |
Robo-Sheets - Double-Layered Structure Based on Robot-Aided Plastic Sheet Thermoforming |
| doi |
https://doi.org/10.52842/conf.caadria.2021.1.643
|
| source |
A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 1, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 643-652 |
| summary |
Computational design, in combination with robotic fabrication, allows the exploration of complex geometrical differentiation. Notably, thermoplastic sheet materials offer great potential for explorations in robotic fabrication due to their mailable qualities. However, the production of complex shapes from flat-sheet-thermoplastic materials usually depends on molds or on time-consuming procedures. This paper introduces a workflow for the design and fabrication of a double-curved surface made from plastic sheets, which develops a self-supporting structure through using robot-aided one-punch thermoforming. The thickness of a double-curved surface is optimized by applying the Finite Element Method. Notably, forming thermoplastic into a minimal surface strengthens its mechanical properties and this takes a relatively short period of time. According to the relationship between moment and stress in section, two connected minimal-surfaces form a three-dimensional I-profile, making it possible to construct a highly material-efficient structure. Unlike the normal form-finding process, the structure is not limited to compression-only geometry. Compared to thermoforming methods such as Single Point Incremental Forming (SPIF), our one-punch forming process described in this paper shows demonstrates high precision while being less time-consuming. Here, we present a one-to-one scale working prototype as proof of our approach. |
| keywords |
Robotic fabrication; Plastic sheet thermoforming; Lightweight structure; Self-supporting structure; Minimal surface |
| series |
CAADRIA |
| email |
|
| full text |
 file.pdf (18,420,859 bytes) |
| references |
Content-type: text/plain
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Doerstelmann, M., Knippers, J., Menges, A., Parascho, S., Prado, M. and Schwinn, T. (2015)
 ICD/ITKE Research Pavilion 2013 14: Modular Coreless Filament Winding Based on Beetle Elytra
, Architectural Design, 85(5), pp. 54-59
|
|
|
|
|
Nicholas, P. (Producer) (2018)
A Bridge Too Far
, Contribution to exhibition, ars electronica
|
|
|
|
|
Pini, Valerio, Kosaka, Priscila, Malvar, Oscar, Calleja, Montserrat and Tamayo, J. (2016)
How two-dimensional bending can extraordinarily stiffen thin sheets
, Scientific Reports, 6.10.1038/srep29627
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| last changed |
2022/06/07 07:57 |
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