Research Article
Analysis of Criteria for Assessing Safety Distance for Focused Warhead Fragments Based on CDEM
Table 4
Accumulation of error in CDEM.
| Allowable error (Smax) | Grid resolution | Time step | Number of time steps (n) | Accumulated error (Sea) | Allowable number of time steps (nmax) | Reliability index (Rs) |
| 5% | 90 × 69 × 69 | 1 × 10−8s | 200 | 0.007686768 | 8462.183009 | 42.31091504 | 90 × 69 × 69 | 1 × 10−9 s | 2000 | 0.024307696 | 8462.183009 | 4.231091504 | 60 × 46 × 46 | 1 × 10−8 s | 200 | 0.017295229 | 1671.542323 | 8.357711613 | 60 × 46 × 46 | 1 × 10−9 s | 2000 | 0.054692316 | 1671.542323 | 0.835771161 | 30 × 23 × 23 | 1 × 10−8 s | 200 | 0.069180915 | 104.4713952 | 0.522356976 |
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