Research Article
Study of Hypervelocity Projectile Impact on Thick Metal Plates
Table 8
Comparison of free surface velocities in simulations.
| Impact velocity (m/s) | Test ID | HEL (GPa) | % difference | 1st peak velocity (m/s) | % difference | 2nd peak velocity (m/s) | % difference |
| 5338 | 1000-016 | 1.22 | N/A | 243.0 | N/A | 195.0 | N/A | LS-DYNA (5 μs) | 0.64 | −47.5 | 232.0 | −4.5 | 220.0 | 12.8 | CTH (5 μs) | 0.57 | −53.3 | 247.2 | 1.7 | 256.5 | 31.5 |
| 5063 | 1000-017 | 0.95 | N/A | 205.0 | N/A | 171.0 | N/A | LS-DYNA (5 μs) | 0.64 | −32.6 | 228.9 | 11.7 | 195.1 | 14.1 | CTH (5 μs) | 0.57 | –40.0 | 224.8 | 9.7 | 240.2 | 40.5 |
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