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Official Journal of the Japan Wood Research Society

Table 2 Mean statistics of entire or partial surface-loaded specimens, stress spreading and ratio of longitudinal modulus

From: Experimental study on partial compression parallel to grain of solid timber

Statistics

Maximum stress fc,0

3-9

3-9p

3-9pp

6-9

6-9p

6-9pp

9-9

9-9p

9-9pp

Number [−]

6

6

6

6

6

6

6

6

6

Mean [N/mm2]

30

27

27

29

29

26

28

27

27

CV[%]

24

18

15

21

18

13

15

17

14

 

Longitudinal modulus of elasticity in full height Ef

Mean [N/mm2]

3868

3435

3731

2750

2225

2483

1249

1267

1195

CV[%]

24

41

23

44

11

38

18

27

37

 

Stress spreading kc

Mean [−]

–

0.9

0.9

–

1.0

0.9

–

1.0

1.0

CV[%]

–

20

15

–

10

13

–

6.3

3.7

 

Ratio of longitudinal modulus kE

Mean [−]

–

1.0

1.0

–

1.0

1.1

–

1.0

1.0

CV[%]

–

18

13

–

9.6

11

–

6.8

5.8