Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 5 Comparison of R² values

From: Investigation of mechanical properties and elucidation of factors affecting wood-based structural panels under embedment stress with a circular dowel II: detailed observation for plywood and OSB using DIC and CT scanning

Comparison	Material	Step	R²
Inner vs. outer	PW	PD	0.85
	PW	UD	0.66
	OSB	PD	0.66
	OSB	UD	0.38
Strong vs. weak	PW	PD	0.61
	PW	UD	0.24
	OSB	PD	0.55
	OSB	UD	0.53

“Inner vs outer” and “Strong vs Weak” indicate the correlations between outer and inner layers and between strong and weak axial layers, respectively. PD and UD mean plastic difference and ultimate difference, respectively

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