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

Table 3

Parameters of the CCAF material.

Group	Material (specimen) no.	Volume density (g/cm^3)	Dimension (mm)	Yield platform stress (MPa)	Energy absorption (J)
A	B1 (Z1)	0.45	210 × 100 × 75	8.41	7180
	C1 (Z2)	0.55	210 × 100 × 75	12.92	10927
	D1 (Z3)	0.65	210 × 100 × 75	17.64	15717
B	B2 (Z4)	0.45	210 × 100 × 100	8.54	9574
	C2 (Z5)	0.55	210 × 100 × 100	12.65	14570
	D2 (Z6)	0.65	210 × 100 × 100	17.87	20956