Table 9.
Comparison of wood elastic symmetry and deviation (%) of high symmetries of the stiffness tensor from monoclinic symmetry of several wood species on sphere specimens [32].
| Wood species | |||||||
|---|---|---|---|---|---|---|---|
| Simplest symmetry |
Stiffness tensor deviation (%) from monoclinic symmetry |
||||||
| Algorithm Arts [32, 33] |
Algorithm Francois [34] |
||||||
| Isotropic | Transverse isotropic | Orthotropic | Triclinic | Transverse isotropic | Orthotropic | Triclinic | |
| Pine | 74.2 | 19.5 | 14.8 | 8.0 | – | – | – |
| Beech | – | 26.3 | 19.2 | – | |||
| Oak | 72.9 | 10.9 | 5.2 | 2.8 | 16.6 | 13.2 | 8.6 |
| Sapele | 69.5 | 23.3 | 13.4 | 6.4 | – | – | – |
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