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Official Journal of the Japan Wood Research Society

Table 2 Surface morphology parameters of wood

From: Normal contact performance of mortise and tenon joint: theoretical analysis and numerical simulation

Processing mode Surface type σ (Sq) R(1/Spc) ƞ(Spd) Sku
Unpolished Cross section 59.3 0.1477 0.000206 3.61
Tangential section 41.6 0.1142 0.000134 3.43
Radial section 27.6 0.0696 0.000127 3.23
200 mesh sandpaper polished Cross section 28.0 0.2437 0.000330 3.49
Tangential section 19.7 0.1508 0.000297 3.21
Radial section 15.6 0.1746 0.000196 3.14
400 mesh sandpaper polished Cross section 23.9 0.4465 0.000322 3.34
Tangential section 14.7 0.3446 0.000296 3.14
Radial section 11.7 0.2336 0.000169 3.01