Official Journal of the Japan Wood Research Society
Table 2 Mean statistics of specimens
From: Experimental study of compressive properties parallel to grain of glulam
Sample statistics | Maximum stress fc,0 [N/mm2] | Â | ||||||
|---|---|---|---|---|---|---|---|---|
2.5-1Ce | 10-1Ce | 20-1Ce | 20-2Ce | 2.5-1Cy | 10-1Cy | 20-1Cy | 20-2Cy | |
Quantity | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Mean | 31 | 33 | 34 | 33 | 47 | 44 | 45 | 44 |
CV [%] | 6 | 5 | 2 | 3 | 5 | 3 | 2 | 5 |
| Â | Longitudinal modulus of elasticity in full height E L,f [N/mm2] | Â | ||||||
Mean | 4383 | 4432 | 5349 | 6649 | 6823 | 6284 | 8242 | 10,091 |
CV [%] | 19 | 5 | 4 | 1 | 20 | 6 | 5 | 4 |
| Â | Longitudinal modulus of elasticity in middle zone E L,m [N/mm2] | Â | ||||||
Mean | 7549 | 8807 | 14,318 | 9722 | 14,966 | 15,247 | 22,575 | 14,847 |
CV [%] | 12 | 14 | 34 | 8 | 11 | 15 | 18 | 8 |
Sample statistics | Maximum stress fc,0 [N/mm2] | |||||||
|---|---|---|---|---|---|---|---|---|
2.5-1Sp | 10-1Sp | 20-1Sp | 20-05Sp | 20-3Sp | 20-3bSp | 20-3bxSp | 20-3sSp | |
Quantity | 6 | 6 | 6 | 6 | 6 | 4 | 4 | 4 |
Mean | 53 | 44 | 44 | 47 | 41 | 41 | 41 | 42 |
CV [%] | 12 | 6 | 3 | 1 | 1 | 4 | 2 | 4 |
| Â | Longitudinal modulus of elasticity in full height E L,f [N/mm2] | |||||||
Mean | 5327 | 4920 | 2507 | 1601 | 5510 | 2558 | 2381 | 2670 |
CV [%] | 9 | 11 | 3 | 7 | 4 | 3 | 6 | 2 |
| Â | Longitudinal modulus of elasticity in middle zone E L,m [N/mm2] | |||||||
Mean | 13,155 | 12,440 | 13,950 | 13,414 | 11,865 | 13,240 | 12,500 | 14,064 |
CV [%] | 13 | 9 | 16 | 18 | 5 | 9 | 10 | 11 |