| id |
ecaade2024_390 |
| authors |
Lee, Sabrina; Zhong, Gracey; Lian, Catherine; Correa, David |
| year |
2024 |
| title |
Climate-responsive Hygroscopic Wood Bilayers Programmed via Laser Modification |
| source |
Kontovourkis, O, Phocas, MC and Wurzer, G (eds.), Data-Driven Intelligence - Proceedings of the 42nd Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2024), Nicosia, 11-13 September 2024, Volume 1, pp. 361–370 |
| doi |
https://doi.org/10.52842/conf.ecaade.2024.1.361
|
| summary |
Wood is a hygroscopic material that experiences directional swelling when it undergoes changes in moisture content. This anisotropic property can induce bending in bilayer structures; a reaction that is usually undesired in building construction but is now being studied as a means of creating climate-responsive architectural systems. While there are extensive studies describing how to change the bending direction by altering wood grain orientation and composition during lamination or via 4D printing, there is no known method of modifying the curvature direction after the bilayer has been made. In this paper, laser cutting is presented as a novel post processing method that precisely and efficiently manipulates the directional swelling of commercially available bilayer wood composites. The documented tests in this paper utilize 1/4” thick C4 PureBond Maple Plywood, which is made of a thicker, primary (active) layer of wood that is laminated between two thinner, secondary (constraining) layers of wood. When a conventional laser cutter is used to cut and engrave patterns on this pre-laminated material, unique curling deformations, including bi-directional curling, can be achieved. The architectural potential of the resulting bilayer tailoring mechanisms was demonstrated through the development of a proof-of-concept climate-responsive architectural facade system. Further exploration and refinement of this new method could significantly impact the commercial development of responsive facades by facilitating the mass use and customization of multi-directional climate-responsive mechanisms. This process will ultimately reduce costs and carbon consumption by taking advantage of readily available wood products’ innate material properties. |
| keywords |
Wood, Plywood, Climate-responsive, Facades, Laser, Bilayer, Hygroscopic, Anisotropic |
| series |
eCAADe |
| email |
|
| full text |
 file.pdf (2,495,894 bytes) |
| references |
Content-type: text/plain
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| last changed |
2024/11/17 22:05 |
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