Theoretical Research Progress in High-Velocity/Hypervelocity Impact on Semi-Infinite Targets

Table 1

Impact phenomena classification and state evaluation.

Impact velocity	Phenomena		Material state
0.05 km/s	Majority is elastic	10^−5	Quasi-elastic-plastic
0.05~0.5 km/s	Majority is plastic	10^−3	plastic deformation appears
0.5~1 km/s	Viscosity and intensity are remarkable	10^−1	Plastic
1~3 km/s	Material changes from plastic to fluid with strength	10	Remarkable plastic
3~12 km/s	Fluid	10^3	Liquid
12 km/s	Vaporization happens