INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES
In order to investigate the impact resistance of the 2A12 aluminum alloy plate, blunt-nosed projectiles were launched with the impact velocity ranging from 120 m/s to 330 m/s to hit aluminum alloy target plates with a thickness of 6 mm, and the influence of the initial impact speed on the impact res...
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| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.009 |
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| _version_ | 1841535983138373632 |
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| author | HU Jing AN JingDan |
| author_facet | HU Jing AN JingDan |
| author_sort | HU Jing |
| collection | DOAJ |
| description | In order to investigate the impact resistance of the 2A12 aluminum alloy plate, blunt-nosed projectiles were launched with the impact velocity ranging from 120 m/s to 330 m/s to hit aluminum alloy target plates with a thickness of 6 mm, and the influence of the initial impact speed on the impact resistance of targets was analyzed. The ballistic limit and velocity curve of projectiles were obtained by fitting the data of the experiment. The results show that the energy absorption of the target first decreases sharply and then keeps stable with the increase of the initial velocity of the projectile. Meanwhile, the target plate mainly undergoes shear failure, and the structural deformation of the target plate decreases as the velocity of the projectile increases. Moreover, based on the ABAQUS/Explicit finite element software, the modified J-C constitutive relation and fracture criterion were used to calculate the projectile impact target model. And the failure mechanisms of targets were analyzed on the base of verifying the validity of the simulation model.It has been found that the failure mechanisms of targets are similar under different impact speeds, and the initial velocity of the projectile has little effect on the failure mechanism of target. |
| format | Article |
| id | doaj-art-e2ebbcf8dc3d4d10b721ae35f732c19c |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-e2ebbcf8dc3d4d10b721ae35f732c19c2025-01-15T02:24:47ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-0144687329910231INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILESHU JingAN JingDanIn order to investigate the impact resistance of the 2A12 aluminum alloy plate, blunt-nosed projectiles were launched with the impact velocity ranging from 120 m/s to 330 m/s to hit aluminum alloy target plates with a thickness of 6 mm, and the influence of the initial impact speed on the impact resistance of targets was analyzed. The ballistic limit and velocity curve of projectiles were obtained by fitting the data of the experiment. The results show that the energy absorption of the target first decreases sharply and then keeps stable with the increase of the initial velocity of the projectile. Meanwhile, the target plate mainly undergoes shear failure, and the structural deformation of the target plate decreases as the velocity of the projectile increases. Moreover, based on the ABAQUS/Explicit finite element software, the modified J-C constitutive relation and fracture criterion were used to calculate the projectile impact target model. And the failure mechanisms of targets were analyzed on the base of verifying the validity of the simulation model.It has been found that the failure mechanisms of targets are similar under different impact speeds, and the initial velocity of the projectile has little effect on the failure mechanism of target.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.009Aluminum alloy targetBlunt-nosed projectileShear failureFailure mechanismTarget deformation |
| spellingShingle | HU Jing AN JingDan INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES Jixie qiangdu Aluminum alloy target Blunt-nosed projectile Shear failure Failure mechanism Target deformation |
| title | INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES |
| title_full | INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES |
| title_fullStr | INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES |
| title_full_unstemmed | INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES |
| title_short | INVESTIGATION ON THE RESISTANCE PERFORMANCE OF 2A12 ALUMINUM ALLOY THICK TARGETS AGAINST BLUNT-NOSED PROJECTILES |
| title_sort | investigation on the resistance performance of 2a12 aluminum alloy thick targets against blunt nosed projectiles |
| topic | Aluminum alloy target Blunt-nosed projectile Shear failure Failure mechanism Target deformation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.01.009 |
| work_keys_str_mv | AT hujing investigationontheresistanceperformanceof2a12aluminumalloythicktargetsagainstbluntnosedprojectiles AT anjingdan investigationontheresistanceperformanceof2a12aluminumalloythicktargetsagainstbluntnosedprojectiles |