Research Article
Numerical Study on the Explosive Separation of Pyrotechnic Cutter
Table 3
Material parameters of Ti6%Al4%V.
| | Shock EOS | Johnson–Cook strength model | Johnson–Cook failure model |
| | (g/cm3) | 4.419 | (GPa) | 41.9 | D1 | −0.09 | | 1.23 | B (GPa) | 1.092 | D2 | 0.25 | | (m/s) | 5130 | n | 0.93 | D3 | −0.5 | | 1.028 | C | 0.014 | D4 | 0.014 | | (K) | 300 | m | 1.1 | D5 | 3.87 | | (J/kg·K) | 525 | (K) | 1878 | | Erosion criterion | | | | (1) s | 1.0 | Type | Failure |
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