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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 6 Theoretical effects of thickness and transverse shear deformation on selected sensitive natural frequencies

From: Comparative study on measurement of elastic constants of wood-based panels using modal testing: choice of boundary conditions and calculation methods

Material

FFFF

SFSF

f (2,0) (%)

f (1,1) (%)

f (0,2) (%)

f (2,0) (%)

f (2,1) (%)

f (2,2) (%)

OSB

0.08

−0.74

0.39

−0.02

−1.47

−0.83

DOSB

−0.06

−1.81

0.16

−0.15

−3.43

−2.55

MDF

−0.32

−3.01

−1.06

−0.47

−5.45

−3.45

DMDF

−1.17

−6.52

−4.28

−1.33

−11.44

−9.07

  1. Finite element modeling was performed using material properties presented in Table 1 for DOSB and DMDF. OSB and MDF are short for oriented strand board, and medium density fiberboard, respectively. DOSB and DMDF are short for double-thick oriented strand board, and double-thick medium density fiberboard, respectively. FFFF represents the boundary condition of all sides free, and SFSF represents the boundary condition of a pair of opposite sides along minor strength direction simply supported and the other pair along major strength direction free
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