Thermal relaxation of laminated bamboo for folded shells
Materials and Design
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Ramage, M., Sharma, B., Shah, D., & Reynolds, T. (2017). Thermal relaxation of laminated bamboo for folded shells. Materials and Design, 132 582-589. https://doi.org/10.1016/j.matdes.2017.07.035
Laminated bamboo is emerging as a novel material in design and construction. As a natural fibre composite, it has unique mechanical properties that allow for innovations that are not possible in other materials. Here, we discuss one new application of those properties: the development of a novel bending technique using high temperature, and we explore its implications for design. We have explored the fundamental properties of laminated bamboo and its thermal relaxation asit passes the glass transition temperatures of its constituent polymers.By mechanically thinning engineered bamboo material, score lines allow precise, controlled and localised heating that promotes limited but essential elasto-plastic behaviour. Concentrated heating above the glass transition temperature induces property evolution and structural morphology changes, which results in thermal relaxation with minimal recovery and full set upon cooling.This original technology is then deployed in the design and construction of a folded plate helical shell composed of thin laminated bamboo sheets.
laminated bamboo, engineered bamboo, thermal relaxation, design, natural fibre composite
The presented work is supported by a Leverhulme Trust Programme Grant, and EPSRC Grant EP/K023403/1.
Engineering and Physical Sciences Research Council (EP/K023403/1)
Leverhulme Trust (RP2013-SL-008)
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External DOI: https://doi.org/10.1016/j.matdes.2017.07.035
This record's URL: https://www.repository.cam.ac.uk/handle/1810/267348
Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International
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