Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target
Based on the dynamic shock response of the material and structure, the hypervelocity impact processes and mechanisms of long composite rods with axial density/impedance gradients penetration into four-layer targets were studied through experiments and numerical simulation methods. The propagation la...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-10-01
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| Series: | Defence Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914723000387 |
| _version_ | 1797649643121672192 |
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| author | Na Feng Kun Ma Chunlin Chen Lixin Yin Mingrui Li Zhihua Nie Gang Zhou Chengwen Tan |
| author_facet | Na Feng Kun Ma Chunlin Chen Lixin Yin Mingrui Li Zhihua Nie Gang Zhou Chengwen Tan |
| author_sort | Na Feng |
| collection | DOAJ |
| description | Based on the dynamic shock response of the material and structure, the hypervelocity impact processes and mechanisms of long composite rods with axial density/impedance gradients penetration into four-layer targets were studied through experiments and numerical simulation methods. The propagation law of the shock waves, together with the structural responses of the projectiles and targets, the formation and evolution of the fragment groups formed during the processes and their distributions were described. The damage of each target plate was quantitatively analysed by comparing the results of the experiment and numerical simulation. The results showed that the axial density/impedance gradient projectiles could decrease the impact pressure to a certain extent, and the degree of damage to the target plate decreased layer by layer when the head density/impedance of the projectile was high. When the head density/impedance of the projectile was low, the degree of target damage first increased layer by layer until the projectile was completely eroded and then it decreased. The results can provide a reference for the design and application of long rods with axial composite structure for velocities ranging from 6 to 10 Ma or greater. |
| first_indexed | 2024-03-11T15:49:36Z |
| format | Article |
| id | doaj.art-0a4c646470184f6288bc5bacd1635b38 |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-03-11T15:49:36Z |
| publishDate | 2023-10-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-0a4c646470184f6288bc5bacd1635b382023-10-26T04:18:06ZengKeAi Communications Co., Ltd.Defence Technology2214-91472023-10-0128314329Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 targetNa Feng0Kun Ma1Chunlin Chen2Lixin Yin3Mingrui Li4Zhihua Nie5Gang Zhou6Chengwen Tan7School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China; Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, PR ChinaLaboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, PR ChinaLaboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, PR ChinaLaboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, PR ChinaLaboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, PR ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR ChinaLaboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, PR China; Corresponding author.School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, PR China; Corresponding author.Based on the dynamic shock response of the material and structure, the hypervelocity impact processes and mechanisms of long composite rods with axial density/impedance gradients penetration into four-layer targets were studied through experiments and numerical simulation methods. The propagation law of the shock waves, together with the structural responses of the projectiles and targets, the formation and evolution of the fragment groups formed during the processes and their distributions were described. The damage of each target plate was quantitatively analysed by comparing the results of the experiment and numerical simulation. The results showed that the axial density/impedance gradient projectiles could decrease the impact pressure to a certain extent, and the degree of damage to the target plate decreased layer by layer when the head density/impedance of the projectile was high. When the head density/impedance of the projectile was low, the degree of target damage first increased layer by layer until the projectile was completely eroded and then it decreased. The results can provide a reference for the design and application of long rods with axial composite structure for velocities ranging from 6 to 10 Ma or greater.http://www.sciencedirect.com/science/article/pii/S2214914723000387HypervelocityDensity/impedance gradientAxial composite rodPenetration mechanism |
| spellingShingle | Na Feng Kun Ma Chunlin Chen Lixin Yin Mingrui Li Zhihua Nie Gang Zhou Chengwen Tan Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target Defence Technology Hypervelocity Density/impedance gradient Axial composite rod Penetration mechanism |
| title | Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target |
| title_full | Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target |
| title_fullStr | Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target |
| title_full_unstemmed | Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target |
| title_short | Study of the axial density/impedance gradient composite long rod hypervelocity penetration into a four-layer Q345 target |
| title_sort | study of the axial density impedance gradient composite long rod hypervelocity penetration into a four layer q345 target |
| topic | Hypervelocity Density/impedance gradient Axial composite rod Penetration mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2214914723000387 |
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