extremely significantp < 0.001
One-way ANOVA revealed that crack depth had an extremely significant effect on R -value ( F (10, 429) = 35.5, p < 0.001).
One-way ANOVA revealed that crack depth had an extremely significant effect on R -value ( F (10, 429) = 35.5, p < 0.001).
The influence of the location of the two secondary cracks on the specimen is not as significant as that of the location of the primary crack.