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Official Journal of the Japan Wood Research Society

Table 1 Element test results

From: Study on the strength of glued laminated timber beams with round holes: difference in structural performance between homogeneous-grade and heterogeneous-grade timber

  Strength grade Max Min Ave SD
Shear strength parallel to the grain Fs (N/mm2) L110 9.13 7.28 8.24 0.57
L80 8.38 6.12 7.17 0.57
Tension strength perpendicular to the grain Ft90 (N/mm2) L110 2.97 2.44 2.60 0.21
L80 2.46 1.88 2.15 0.20
Fracture energy for Mode I GIc (N m/m2) L110 485 322 422 49
L80 475 243 375 89
  1. Tree species: Scots pine