Study of the Appropriate Factors for Laminated Bamboo Bending by Design of Experiments

This research studied the appropriate factors and conditions for laminated bamboo bending by Design of Experiments (DOE). The interested factors affecting the spring back in laminates bamboo were (1) time, (2) thickness, and (3) frequency. This experiment tested the specimen by using high frequency machine and measured its spring back immediately and next 24 hours for comparing the spring back ratio. Results from the experiments showed that significant factors having major influence to bending of laminates bamboo were thickness and frequency. The appropriate conditions of thickness and frequency were 4 mm. and 1.5 respectively.

• Vanchai Laemlaksakul
• Sompoap Talabgaew

• Bamboo
• bending
• spring back
• design of experiments.

[1] Y. Yuming, Z. H. Jian, "Prospect for Bamboo-Base Products as
Replacement for Wood in Yunnan," Proceedings of 4th International
Bamboo Workshop, Thailand, pp. 273-277.
[2] B. Subiyanto, et al., "Production Technology of Superior Strength
Timber from bamboo," Proceedings of the 3rd Pacific Bio-Baesd
Composites Symposium, Kyoto, Japan, pp. 470-478.
[3] V. Laemlaksakul, and S. Kaewkuekool, "Laminated Bamboo Materials
for Furniture - A Systematic Approach to Innovative Product Design,"
WSEAS Transactions on Engineering Education, vol. 3, pp. 424-430,
May 2006.
[4] D. C. Montgomery, Design and Analysis of Experiments. 5th ed., Wiley
& Sons, 2001.
[5] L. Meekaew. et al., "The Study of Wood Strength Laminated by Urea-
Formaldehyde from Hot and Cold Processes," Research Paper, King
Mongkut-s Institute of Technology North Bangkok, 2006.
[6] W. Phromchotiku, Structural Glulam from Small Logs, Research and
Development Section, Department of Forest, 2001.