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

Figure 15

Fitting of stress and impact velocity of #4 reinforcement. Note: the reinforcement reaches yield when Z2-20 is 1.42 m/s, at which point its elastic modulus cannot be determined, and thus only the first three values are taken.

(a)

(b)