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| Numerical simulations of simulated EFP penetration into alumina ceramic/steel composite target |
| Received:December 06, 2008 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20094021 |
| KeyWord:penetration pre-drilled cavity concrete target numerical simulation |
| Author | Institution |
| 李金柱 |
北京理工大学 爆炸科学与技术国家重点实验室,北京 |
| 黄风雷 |
北京理工大学 爆炸科学与技术国家重点实验室,北京 |
| 张连生 |
北京理工大学 爆炸科学与技术国家重点实验室,北京 |
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| Abstract: |
| With the Johnson-Holmquist constitutive ceramic model and Lagrangian algorithm, computations are presented for the simulated EFP penetrating into alumina ceramic/steel composite target. The penetration depths acquired by simulations are compared with test data, which show the simulation results are reliable. The dependent relations are given out between residual penetration depths, mass efficient factor, differential factor and ceramic tiles thickness both for simulation results and test data. The damage initiation and evolution in penetrating process are also showed. It demonstrates that the penetration-resisting performance of ceramic can be decreased greatly when the ceramic diameter is not enough big. |