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Study on a bamboo stressed flattening process

Untersuchung eines Flachpressverfahrens für Bambusholz

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Abstract

Bamboo stressed flattening process is an innovative forming technique. In this process, a pair of horizontal loads was exerted on both sides of a bamboo piece to counteract the tensile stress of the bamboo inner layer in response to flattening. The theoretical model of this process was developed and introduced in this paper. A special device that is capable of providing the loads required was constructed and various series of experiments on bamboo pieces of 1/3 round (cut from different positions of bamboo and having different diameter and thickness) were performed. The results suggested that over 78 % of the 108 total bamboo samples were flattened successfully which verified the correctness and feasibility of the process.

Zusammenfassung

Das Flachpressen von Bambusholz ist ein innovatives Formgebungsverfahren. Dabei wird auf beiden Seiten des Bambuskörpers jeweils eine horizontale Last aufgebracht, um der Zugspannung der inneren Bambusschicht beim Flachpressen entgegenzuwirken. In dieser Arbeit wird das theoretische Modell dieses Verfahrens entwickelt und vorgestellt. Ein Spezialgerät für das Aufbringen der notwendigen Lasten wurde konstruiert und verschiedene Versuchsserien an Bambusproben, die 1/3 des Halmumfangs umfassen (entnommen an verschiedenen Positionen mit unterschiedlichem Durchmesser und Dicke), wurden durchgeführt. Die Ergebnisse zeigen, dass über 78 % der 108 Prüfkörper erfolgreich flachgepresst werden konnten. Dies bestätigt die Richtigkeit und Eignung dieses Verfahrens.

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Acknowledgments

This project was supported by the Doctorate Fellowship Foundation of Nanjing Forestry University.

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Correspondence to Xiaoning Lu.

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Liu, J., Zhang, H., Chrusciel, L. et al. Study on a bamboo stressed flattening process. Eur. J. Wood Prod. 71, 291–296 (2013). https://doi.org/10.1007/s00107-013-0670-y

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  • DOI: https://doi.org/10.1007/s00107-013-0670-y

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