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| Penetration Performance of Depleted Uranium Alloy Ball on Q235 Steel Target |
| Received:May 25, 2023 Revised:August 14, 2023 |
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| DOI：10.7643/issn.1672-9242.2023.11.001 |
| KeyWord:depleted uranium alloy Q235 steel target initial velocity residual velocity reaming area penetration depth |
| Author | Institution |
| WANG Cun-hong |
Xi'an Modern Chemistry Research Institute, Xi'an , China |
| ZHENG Wen-kai |
Xi'an Modern Chemistry Research Institute, Xi'an , China |
| WU Han-lin |
Xi'an Modern Chemistry Research Institute, Xi'an , China |
| CAO Yu-wu |
Xi'an Modern Chemistry Research Institute, Xi'an , China |
| SUN Xing-yun |
Xi'an Modern Chemistry Research Institute, Xi'an , China |
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| Abstract: |
| The work aims to study the penetration behavior of depleted uranium alloy balls on Q235 steel targets, to provide support for further study of the penetration behavior of depleted uranium alloy material and its wide application in warhead. An impact model of depleted uranium alloy balls on Q235 steel target was established with a Johnson-Cook strength model and a failure model. The effect of initial velocity and size of depleted uranium alloy balls on residual velocity, ream area and penetration depth was simulated with an Abaqus/explicit module, and the results were analyzed. The ultimate penetration velocity of depleted uranium alloy balls was obtained by experiment and simulation, and the results were basically consistent, which verified the accuracy of the model parameters. It was found that the residual velocity of depleted uranium alloys ball with the same size increased linearly with the increase of initial velocity, and the velocity attenuation rate after penetration was 14.6%~33.2%. When the initial velocity was 900 m/s ~1 300 m/s and the diameter was 5 mm ~9 mm, the reamer area ratio was 1.08~1.286. Penetration depth of depleted uranium alloy balls increased with diameter and velocity gradually, the relationship between penetration depth (H), diameter (d) and initial velocity (v) was . The initial velocity and size of the alloy ball are the key factors affecting the penetration depth, but have no significant effect on the reaming diameter. |
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