Impact-Induced Delamination Detection of Composites Based on Laser Ultrasonic Zero-Lag Cross-Correlation Imaging

Table 1

Material properties of a composite plate: mass density (), Young’s modulus (), shear modulus (), Poisson coefficient (), and thickness ().

(kg/m^3)	(GPa)	(GPa)		(GPa)	(mm)
1700	131	8.2	0.281	4.5	3