Investigation on densification of metal foam under dynamic loading

In the present study, a one-dimensional steady shock model based on a rate -independent, rigid, perfectly plastic locking idealization (R-P-P-L) of the nominal stress-train curve for metal foam is proposed to analyze the stress and densification in metal foam subjected to dynamic compression. The results showed that, the length of the densification increases exponentially with increasing of impact velocity and then reaches a constant, and can be affected by the density and plateau stress of the foams.