Study on the Influence of Closed-Cell Aluminum Foam on the Impact Performance of Concrete Pier after Equal Replacement with Stainless Steel Reinforcement

Table 6

Impact scheme.

Specimen no.	Impact times	Height of the drop hammer (m)	Average impact velocity (m/s)	Accumulated energy (J)	Stress stage of closed-cell aluminum foam
S1-16	1	2	0.72	311.04	Yield stage
	2	4	1.10	1037.04
Z2-20	3	6	1.42	2246.88
S1-20	4	8	1.67	3920.22	Densification stage
Z2-25	5	10	1.84	5951.58
	6	12	2.08	8547.42