Experimental Study on the Impact Resistance of Closed-Cell Aluminum Foam Protective Materials to RC Piers under Lateral Impact

Table 7

Ultimate crack development and failure modes of the specimens.

Group	Specimen no.	Left side of the impact point	Front-bottom of the impact point	Back-bottom of the impact point	Right side of the impact point
A	Z1
	Z2
	Z3
B	Z4
	Z5
	Z6