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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Mean and CV results from the nondestructive and shear tests obtained using the asymmetric four-point bending method

From: Effects of the presence or absence and the position of glued edge joints in the lamina on the shear strength of glued laminated timber

Group

Density

(kg/m3)

MC

(%)

Efr-L

(kN/mm2)

ETGH(V)

(kN/mm2)

GTGH(V)

(kN/mm2)

Shear strength

(N/mm2)

GJ20 (N = 5)

402 (2.77)

11.4 (1.06)

8.11 (3.15)

7.75 (3.62)

0.823 (6.68)

5.70 (9.94)

NJ20 (N = 5)

402 (5.98)

11.7 (2.17)

8.18 (6.10)

7.86 (8.05)

0.564 (12.1)

3.40 (13.0)

NJ38 (N = 5)

392 (3.28)

11.8 (2.91)

8.54 (3.22)

8.19 (2.18)

0.517 (7.11)

3.66 (14.2)

NJ56 (N = 5)

392 (2.30)

11.6 (2.05)

8.56 (3.38)

8.67 (4.03)

0.560 (6.38)

4.11 (5.20)

  1. The left and right values in the cell are the mean value and CV (in percentage). In the case of bending failure, shear strength was calculated using the load during bending failure as the apparent shear failure
  2. N, number of specimens; MC, moisture content; Efr-L, Young’s modulus by the longitudinal vibration method; ETGH(V),Young’s modulus by the Timoshenko–Goens–Hearmon flexural vibration method (TGH method); GTGH(V), shear modulus by the TGH method
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