Official Journal of the Japan Wood Research Society
Table 5 Evaluation of elastic moduli of N-finity bamboo measured using Eqs. (3) and (5)
From: Mechanical properties of laminated bamboo lumber N-finity according to ISO 23478-2022
Property | Samples | Without strain gauges | With strain gauges | ||||
|---|---|---|---|---|---|---|---|
\({E}_{11}\) | \({E}_{22}\) | \({E}_{33}\) | \({E}_{11}\) | \({E}_{22}\) | \({E}_{33}\) | ||
Values (\(E\)) in GPa | 1 | 6.685 | 1.328 | 0.871 | 8.575 | 2.809 | 0.803 |
2 | 8.626 | 1.604 | 1.245 | 8.178 | 0.773 | 0.995 | |
3 | 11.373 | 1.822 | 0.727 | 10.230 | 1.385 | 0.784 | |
4 | 7.895 | 1.802 | 0.783 | 10.001 | 0.855 | 0.576 | |
5 | 9.170 | 1.737 | 0.729 | 10.530 | 0.753 | 0.633 | |
Mean | 8.75 | 1.659 | 0.871 | 9.50 | 1.32 | 0.76 | |
STD | 1.55 | 0.18 | 0.22 | 0.94 | 0.78 | 0.15 | |
COV % | 17.75 | 10.97 | 22.29 | 9.92 | 59.4 | 20 | |