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Design and Evaluation of Thin-Walled Hollow-Core WoodStrand Sandwich Panels

Christopher Voth1, Nathan White2, Vikram Yadama3,*, William Cofer3

1 Puget Sound Naval Shipyard, 1400 Farragut Ave, Bremerton, Washington, USA 98314
2 Stanley Consultants, 8000 S Chester St Suite 500, Centennial, Colorado, USA 80112
3 Department of Civil and Environmental Engineering, Washington State University, Pullman, Washington, USA

* Corresponding Author: email

Journal of Renewable Materials 2015, 3(3), 234-243.


Part of a long-term goal of developing a sustainable composite panel that meets both structural and energy performance requirements in building construction applications, this study discusses the development of a thinwalled wood-strand 3D core element that shows promise for a variety of panelized construction applications, such as in a building envelope. Sandwich panels take advantage of the lightweight corrugated core sandwiched between stress skin faces acting similar to an I-beam. Specific bending stiffness of sandwich panels fabricated with ponderosa pine strands was significantly higher than average values of commercially produced composite panels of equivalent thickness (141–156% and 120–133% stiffer than oriented strand board (OSB) and 5-ply plywood respectively). Compared to OSB of equivalent thickness, sandwich panels require 40% less wood strands by weight, which also means lower usage of resin. This basic concept creates tremendous flexibility in designing panelized wall, floor and roof elements for building envelope applications.


Cite This Article

Voth, C., White, N., Yadama, V., Cofer, W. (2015). Design and Evaluation of Thin-Walled Hollow-Core WoodStrand Sandwich Panels. Journal of Renewable Materials, 3(3), 234–243.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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