Official Journal of the Japan Wood Research Society
Table 4 Characteristic results of the constant-amplitude reversed cyclic bending test
Specimen | M max (Nm) | γ p (deg.) | N f | ΣE cy (Nm) | E cy-ave (Nm) |
|---|---|---|---|---|---|
4.1 × 38 mm | |||||
15° | 5.59 | 14.61 | 12.67 | 22.70 | 0.90 |
(0.05) | (0.40) | (0.76) | (1.94) | (0.06) | |
22.5° | 5.78 | 27.87 | 6.00 | 21.77 | 1.84 |
(0.05) | (1.74) | (1.73) | (4.40) | (0.19) | |
30° | 5.70 | 42.78 | 2.00 | 11.74 | 2.93 |
(0.10) | (1.13) | (0.00) | (0.21) | (0.05) | |
4.5 × 50 mm | |||||
15° | 6.68 | 11.84 | 14.50 | 25.17 | 0.89 |
(0.19) | (1.11) | (3.19) | (3.49) | (0.13) | |
22.5° | 7.17 | 25.92 | 5.25 | 22.46 | 2.15 |
(0.10) | (0.80) | (0.82) | (2.61) | (0.09) | |
30° | 7.23 | 41.38 | 1.70 | 12.13 | 3.56 |
(0.11) | (0.98) | (0.35) | (2.59) | (0.08) | |
CN50 | |||||
15° | 3.02 | 19.79 | 64.83 | 89.42 | 0.69 |
(0.06) | (0.35) | (22.68) | (30.82) | (0.02) | |
22.5° | 3.16 | 33.65 | 25.67 | 66.52 | 1.30 |
(0.12) | (0.16) | (5.58) | (12.48) | (0.04) | |
30° | 3.24 | 47.61 | 11.17 | 44.07 | 1.98 |
(0.06) | (0.82) | (1.26) | (3.48) | (0.07) | |