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Table S2

Duncan multiple comparison tests for the Longitudinal Specific MOE (MPa/Kg/m3) obtained from vibration in LR plane at different crack length-Based on 18 observations.

Subsets for alpha = 0.05
Crack Size
1 2
18 cm 15.850
12 cm 19.641 19.641
6 cm 23.995
Zero 25.067

Means for groups in homogeneous subsets are displayed. a Uses Harmonic Mean Sample Size = 18.