Official Journal of the Japan Wood Research Society
Table 1 Bending strength of the three-point bending test results
Type of material | L (mm) | D (mm) | L/D | ρ (kg/m3) | fr (N/mm2) | ||
|---|---|---|---|---|---|---|---|
Ave. | S. D. | Ave. | S. D. | ||||
L80 | 500 | 300 | 1.7 | 485 | 1 | 2.11 | 0.16 |
250 | 2.0 | 481 | 4 | 2.27 | 0.27 | ||
200 | 2.5 | 483 | 9 | 2.41 | 0.23 | ||
150 | 3.3 | 485 | 6 | 2.15 | 0.20 | ||
100 | 5.0 | 488 | 3 | 2.19 | 0.05 | ||
80 | 6.3 | 480 | 6 | 2.44 | 0.20 | ||
200 | 150 | 1.3 | 467 | 7 | 2.45 | 0.10 | |
100 | 2.0 | 465 | 10 | 2.75 | 0.24 | ||
80 | 2.5 | 465 | 12 | 2.79 | 0.25 | ||
60 | 3.3 | 471 | 11 | 3.39 | 0.34 | ||
40 | 5.0 | 468 | 7 | 3.52 | 0.40 | ||
20 | 10.0 | 468 | 13 | 4.06 | 0.50 | ||
10 | 20.0 | 476 | 16 | 4.79 | 0.35 | ||
100 | 40 | 2.5 | 494 | 8 | 3.46 | 0.50 | |
30 | 3.3 | 501 | 5 | 3.97 | 0.27 | ||
20 | 5.0 | 486 | 11 | 4.07 | 0.53 | ||
10 | 10.0 | 496 | 4 | 5.13 | 0.54 | ||
L110 | 500 | 300 | 1.7 | 520 | 7 | 2.49 | 0.49 |
250 | 2.0 | 517 | 7 | 2.32 | 0.33 | ||
200 | 2.5 | 513 | 8 | 2.49 | 0.34 | ||
150 | 3.3 | 510 | 2 | 2.60 | 0.21 | ||
100 | 5.0 | 503 | 5 | 2.95 | 0.29 | ||
80 | 6.3 | 502 | 4 | 3.05 | 0.35 | ||
200 | 150 | 1.3 | 522 | 6 | 2.61 | 0.28 | |
100 | 2.0 | 523 | 5 | 2.64 | 0.37 | ||
80 | 2.5 | 526 | 5 | 3.31 | 0.37 | ||
60 | 3.3 | 521 | 8 | 3.22 | 0.51 | ||
40 | 5.0 | 529 | 18 | 3.99 | 0.79 | ||
20 | 10.0 | 532 | 12 | 4.89 | 0.77 | ||
10 | 20.0 | 524 | 15 | 5.54 | 0.52 | ||
100 | 40 | 2.5 | 513 | 10 | 3.65 | 0.26 | |
30 | 3.3 | 521 | 11 | 3.86 | 0.39 | ||
20 | 5.0 | 515 | 14 | 4.51 | 0.34 | ||
10 | 10.0 | 522 | 9 | 5.73 | 0.38 | ||