Experimental Nondestructive Test for Estimation of Buckling Load on Unstiffened Cylindrical Shells Using Vibration Correlation Technique

Table 2

Measured material properties of UD prepreg Hexcel IM7/8552.

	Mean value		Std. deviation [%]
	171.5	GPa	2.6
	150.2	GPa	4.6
	8.9	GPa	4.2
	9.4	GPa	10.9
	5.1	GPa	7.8
	0.32		13
	2300	MPa	13.8
	857	MPa	10.1
	40	MPa	20.4
	203	MPa	3.9
	51	MPa	8.4
-ply	0.125	mm