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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