Journal of Materials Science

, Volume 32, Issue 10, pp 2693–2697

Viscoelastic properties of bamboo

  • R. S LAKES

DOI: 10.1023/A:1018683308211

Cite this article as:
AMADA, S. & LAKES, R.S. Journal of Materials Science (1997) 32: 2693. doi:10.1023/A:1018683308211


Dynamic viscoelastic properties of bamboo were determined in torsion and bending. Damping, measured by tan δ, in dry bamboo was relatively small, about 0.01 in bending and 0.02 to 0.03 in torsion, with little dependence on frequency in the audio range. In wet bamboo, damping was somewhat greater: 0.012–0.015 in bending and 0.03–0.04 in torsion. The anisotropy in damping implies a purely cellular model is insufficient; there is large-scale molecular orientation or at least two distinct solid phases.

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

    • 1
  • R. S LAKES
    • 2
  1. 1.Department of Mechanical Engineering, School of EngineeringGunma UniversityKiryu Gunma376 Japan
  2. 2.Department of Biomedical Engineering, Department of Mechanical Engineering, Center for Laser Science and EngineeringUniversity of IowaIowa CityUSA