Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity
In order to investigate the effect of the carrier’s initial velocity on the jet’s damage power, this paper conducted the numerical simulation of a jet penetrating thick-walled targets at various following velocities (the carrier’s initial velocity). For large stand-off distance (D), the influence on...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/7646255 |
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| _version_ | 1832546135705649152 |
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| author | Jun-run Li Yong-gang Lu Bin Liang Hengwei Xu Xing Chen Jian Zhang |
| author_facet | Jun-run Li Yong-gang Lu Bin Liang Hengwei Xu Xing Chen Jian Zhang |
| author_sort | Jun-run Li |
| collection | DOAJ |
| description | In order to investigate the effect of the carrier’s initial velocity on the jet’s damage power, this paper conducted the numerical simulation of a jet penetrating thick-walled targets at various following velocities (the carrier’s initial velocity). For large stand-off distance (D), the influence on jet formation parameters was revealed under different following velocities (ranging from 0 to 1000 m/s), and the jet’s penetration performances were analyzed at various stand-off distances (ranging from 3D to 10D). Then, taking 3D as an example, the study investigated the influence mechanism of the coupling between following velocity and impact angle (ranging from −60° to 60°) on jet penetration performance. The results show that an increase in the following velocity causes the jet to bend and break at an earlier time. The following velocity has a minimal effect on jet tip velocity. Additionally, the lateral displacement is linearly correlated with stand-off distance. For normal penetration, the jet penetration depth decreases exponentially as the following velocity increases at the same stand-off distance. Especially, the penetration depth decreases by over 80% when the following velocity exceeds 600 m/s, and a further increase in the following velocity has a minimal effect on jet penetration depth. A greater jet penetration depth was achieved for the climbing-oblique penetration (COP) than the diving-oblique penetration (DOP) due to an increase in dynamic stand-off distance. Finally, the ratio of oblique to normal penetration depth for a jet with varying following velocities was derived based on the theory of steady-jet and hole expansion, and its accuracy was verified. |
| format | Article |
| id | doaj-art-6236a2833c5245efb4cffd9d748efb28 |
| institution | Kabale University |
| issn | 1687-5974 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-6236a2833c5245efb4cffd9d748efb282025-02-03T07:23:47ZengWileyInternational Journal of Aerospace Engineering1687-59742024-01-01202410.1155/2024/7646255Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following VelocityJun-run Li0Yong-gang Lu1Bin Liang2Hengwei Xu3Xing Chen4Jian Zhang5Institute of Systems of EngineeringInstitute of Systems of EngineeringInstitute of Systems of EngineeringInstitute of Systems of EngineeringInstitute of Systems of EngineeringNorth Hua’an Industrial Group Co., LTDIn order to investigate the effect of the carrier’s initial velocity on the jet’s damage power, this paper conducted the numerical simulation of a jet penetrating thick-walled targets at various following velocities (the carrier’s initial velocity). For large stand-off distance (D), the influence on jet formation parameters was revealed under different following velocities (ranging from 0 to 1000 m/s), and the jet’s penetration performances were analyzed at various stand-off distances (ranging from 3D to 10D). Then, taking 3D as an example, the study investigated the influence mechanism of the coupling between following velocity and impact angle (ranging from −60° to 60°) on jet penetration performance. The results show that an increase in the following velocity causes the jet to bend and break at an earlier time. The following velocity has a minimal effect on jet tip velocity. Additionally, the lateral displacement is linearly correlated with stand-off distance. For normal penetration, the jet penetration depth decreases exponentially as the following velocity increases at the same stand-off distance. Especially, the penetration depth decreases by over 80% when the following velocity exceeds 600 m/s, and a further increase in the following velocity has a minimal effect on jet penetration depth. A greater jet penetration depth was achieved for the climbing-oblique penetration (COP) than the diving-oblique penetration (DOP) due to an increase in dynamic stand-off distance. Finally, the ratio of oblique to normal penetration depth for a jet with varying following velocities was derived based on the theory of steady-jet and hole expansion, and its accuracy was verified.http://dx.doi.org/10.1155/2024/7646255 |
| spellingShingle | Jun-run Li Yong-gang Lu Bin Liang Hengwei Xu Xing Chen Jian Zhang Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity International Journal of Aerospace Engineering |
| title | Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity |
| title_full | Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity |
| title_fullStr | Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity |
| title_full_unstemmed | Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity |
| title_short | Numerical Study and Theoretical Model of Shaped Charge Jet Penetrating Into Thick-Walled Target With Following Velocity |
| title_sort | numerical study and theoretical model of shaped charge jet penetrating into thick walled target with following velocity |
| url | http://dx.doi.org/10.1155/2024/7646255 |
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