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( a )
( b )
Figure3. Results of bending test: ( a )MOEand ( b ) MOR in flatwise and edgewise positions.
On the other hand, after analyzing the modes of failure (Figure 5), only two types were observed: simple tension and splintering tension, with the predominant mode being splintering tension. This result was expected due to the composition of the OSB panels (flake distribution). Table 4 presents the results of the mechanical properties derived from the tensile strength, internal bond, and Janka hardness tests.
Table4. Results of tensile strength, internal bond strength, and Janka hardness of each OSB sample.
Tensile Strength (MPa) Mean St. Dev.
Internal Bond Strength (MPa)
OSB Sample ID
Janka Hardness (N)
Mean St. Dev.
Mean St. Dev.
8896 a 7781 a 7669 a
OSB-C 14.08 b
0.95 b 0.81 ab 0.62 a
5.52 3.58
0.36 0.08 0.15
2114 2172
9.64 ab 6.85 a
OSB-1 OSB-2
0.54 1265 a and b correspond to homogeneous groups from a multiple range test, through the method 95% LSD, which are statistically different from each other. The tensile strength results for the different OSB samples ranged from 6.85 MPa (OSB-2) to 14.08 MPa (OSB-C), with OSB-1 and OSB-2 achieving 68.47% and 48.65%, respec- tively, of the tensile strength measured in the control sample OSB-C. Additionally, there were significant statistical differences between the OSB-C and OSB-2 samples, while the
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