Official Journal of the Japan Wood Research Society
Table 1 Concentrated masses (iron plates) attached to rectangular bars
From: Effect of shear and rotatory inertia on the bending vibration method without weighing specimens
Concentrated mass | Specimens | Mass ratio μ | |
|---|---|---|---|
Dimensions | Mass | Dimensions | |
2 × 2 × 30 | 1.0 | 30 × 5 × 300 | 0.0453 |
4 × 2 × 30 | 2.0 | 30 × 10 × 300 | 0.0474 |
7 × 2 × 30 | 3.2 | 30 × 15 × 300 | 0.0504 |
9 × 2 × 30 | 4.1 | 30 × 20 × 300 | 0.0492 |
11 × 2 × 30 | 5.1 | 30 × 25 × 300 | 0.0524 |
13 × 2 × 30 | 6.0 | 30 × 30 × 300 | 0.0518 |
14 × 2 × 30 | 7.0 | 30 × 35 × 300 | 0.0512 |
17 × 2 × 30 | 7.9 | 30 × 40 × 300 | 0.0506 |
20 × 2 × 30 | 9.4 | 30 × 45 × 300 | 0.0515 |
21 × 2 × 30 | 10.3 | 30 × 50 × 300 | 0.0510 |
24 × 2 × 30 | 11.3 | 30 × 55 × 300 | 0.0506 |
26 × 2 × 30 | 12.2 | 30 × 60 × 300 | 0.0507 |