Official Journal of the Japan Wood Research Society
Table 3 Tests results
Group | SPF5-0.4 | SPF3-0.4 |
|---|---|---|
Ramp loading | ||
 No. of specimens with rolling shear failure | 55 | 59 |
 Rolling shear failure load (kN) | ||
  Mean | 19.39 | 12.51 |
  Coefficient of variation | 12.6 % | 24.3 % |
  25th % tile | 17.79 | 10.33 |
  5th % tile | 14.75 | 7.97 |
Low cycle trapezoidal short-plateau test | ||
 No. of specimens with rolling shear failure | 28 | 30 |
 No. of specimens with rolling shear failure in the first cycle | 2 | 0 |
 No. of cycles to rolling shear failure (N f) | ||
  Mean | 66.1 | 38.5 |
  Standard deviation | 76.5 | 50.3 |
  Maximum cycles | 281 | 212 |
Low cycle trapezoidal long-plateau test | ||
 No. of specimens with rolling shear failure | 29 | 32 |
 No. of specimens with rolling shear failure in the first cycle | 0 | 4 |
 No. of cycles to rolling shear failure (N f) | ||
  Mean | 15.2 | 12.8 |
  Standard deviation | 18.5 | 23.2 |
  Maximum cycles | 88 | 92 |