Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure
HPS (Honeycomb-like Protective Structure) is a newly proposed protective structure filled with sandy soil. In order to investigate the penetration resistance of the structure, numerical simulations based on SPH method had been carried out by using LS-DYNA, which are corresponding to the experiments....
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/7874543 |
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| _version_ | 1850157879083925504 |
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| author | Weiming Luo Shaoqing Shi Zipeng Chen Jianhu Sun Wenkang Wang |
| author_facet | Weiming Luo Shaoqing Shi Zipeng Chen Jianhu Sun Wenkang Wang |
| author_sort | Weiming Luo |
| collection | DOAJ |
| description | HPS (Honeycomb-like Protective Structure) is a newly proposed protective structure filled with sandy soil. In order to investigate the penetration resistance of the structure, numerical simulations based on SPH method had been carried out by using LS-DYNA, which are corresponding to the experiments. The calibrated model leads to reasonable predictions of the dynamic responses and damage modes of the HPS. More situations were carried out taking factors influencing the penetration into consideration, including point of impact, angle of impact, and projectile caliber. Penetration mode was established by analyzing the energy dissipation and investigating the mechanism from the phenomenological viewpoint. Simulation results show that the resisting forces and the torque that act on the long rod projectile would be greater than those acting on the short one when instability occurred. Besides, approximate 45° angle of impact was formed in the case of off-axis, which has a certain influence on the ballistic stability, resulting in more kinetic energy of projectile dissipating in HPS and less depth of penetration. The kinetic energy of projectile dissipated in sandy soil largely and the strip slightly, and the former was greater than the sum of the latter. |
| format | Article |
| id | doaj-art-627335986ae04d37ab65b49e59e9fb68 |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-627335986ae04d37ab65b49e59e9fb682025-08-20T02:24:01ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/78745437874543Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like StructureWeiming Luo0Shaoqing Shi1Zipeng Chen2Jianhu Sun3Wenkang Wang4Department of Civil Engineering, Logistical Engineering University, Chongqing 401311, ChinaDepartment of Civil Engineering, Logistical Engineering University, Chongqing 401311, ChinaDepartment of Civil Engineering, Logistical Engineering University, Chongqing 401311, ChinaDepartment of Civil Engineering, Logistical Engineering University, Chongqing 401311, ChinaDepartment of Civil Engineering, Logistical Engineering University, Chongqing 401311, ChinaHPS (Honeycomb-like Protective Structure) is a newly proposed protective structure filled with sandy soil. In order to investigate the penetration resistance of the structure, numerical simulations based on SPH method had been carried out by using LS-DYNA, which are corresponding to the experiments. The calibrated model leads to reasonable predictions of the dynamic responses and damage modes of the HPS. More situations were carried out taking factors influencing the penetration into consideration, including point of impact, angle of impact, and projectile caliber. Penetration mode was established by analyzing the energy dissipation and investigating the mechanism from the phenomenological viewpoint. Simulation results show that the resisting forces and the torque that act on the long rod projectile would be greater than those acting on the short one when instability occurred. Besides, approximate 45° angle of impact was formed in the case of off-axis, which has a certain influence on the ballistic stability, resulting in more kinetic energy of projectile dissipating in HPS and less depth of penetration. The kinetic energy of projectile dissipated in sandy soil largely and the strip slightly, and the former was greater than the sum of the latter.http://dx.doi.org/10.1155/2017/7874543 |
| spellingShingle | Weiming Luo Shaoqing Shi Zipeng Chen Jianhu Sun Wenkang Wang Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure Shock and Vibration |
| title | Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure |
| title_full | Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure |
| title_fullStr | Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure |
| title_full_unstemmed | Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure |
| title_short | Projectile Penetration into Sandy Soil Confined by a Honeycomb-Like Structure |
| title_sort | projectile penetration into sandy soil confined by a honeycomb like structure |
| url | http://dx.doi.org/10.1155/2017/7874543 |
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