Sandwich Structured Composites for Aeronautics: Methods of Manufacturing Affecting Some Mechanical Properties

Table 5

Results of impact strength according to Charpy’s method.

Method of producing composite	Type of panel	Average impact strength, kJ/m^2	Standard deviation, kJ/m^2
Hand lay-up	M2	10.15	1.35
	M4	10.42	1.93
	T2	11.48	5.61
	T3	12.87	4.47
Press	P2	19.04	3.05
	P3	13.25	5.32
Autoclave	A2	20.30	2.37
	A3	15.58	3.33