Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles
The local destruction and deformation characteristics of a concrete target impacted by a rigid projectile were analyzed, and the similarity laws for local damage effects in the concrete target were studied utilizing the rigid-plastic, internal friction, and modified hydrodynamic models. For a thin t...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/585230 |
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| _version_ | 1832545317172543488 |
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| author | Mingyang Wang Zheng Liu Yanyu Qiu Cuncheng Shi |
| author_facet | Mingyang Wang Zheng Liu Yanyu Qiu Cuncheng Shi |
| author_sort | Mingyang Wang |
| collection | DOAJ |
| description | The local destruction and deformation characteristics of a concrete target impacted by a rigid projectile were analyzed, and the similarity laws for local damage effects in the concrete target were studied utilizing the rigid-plastic, internal friction, and modified hydrodynamic models. For a thin target, the impact factor is the only factor controlling the low-velocity impact process. For a thick target impacted by a projectile at intermediate velocity, internal friction is the main factor contributing to the energy dissipation. The impact factor, the toughness factor, and the dynamic factor together determine the penetration process. However, for a thick target impacted at high velocity, the impact factor and hardness factor together determine the penetration process. The penetration depth shows a 2/3 power relationship with impact velocity. For thick targets, similarity laws change along with impact velocity. The radii ratio between the projectile and penetration tunnel is proportional to the projectile’s diameter for intermediate velocity impact and only shows a relationship with the impact velocity for high velocity penetration. |
| format | Article |
| id | doaj-art-8f626c97e9b14ec684c2fe79d176d737 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-8f626c97e9b14ec684c2fe79d176d7372025-02-03T07:26:16ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/585230585230Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of ProjectilesMingyang Wang0Zheng Liu1Yanyu Qiu2Cuncheng Shi3State Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, ChinaState Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007, ChinaThe local destruction and deformation characteristics of a concrete target impacted by a rigid projectile were analyzed, and the similarity laws for local damage effects in the concrete target were studied utilizing the rigid-plastic, internal friction, and modified hydrodynamic models. For a thin target, the impact factor is the only factor controlling the low-velocity impact process. For a thick target impacted by a projectile at intermediate velocity, internal friction is the main factor contributing to the energy dissipation. The impact factor, the toughness factor, and the dynamic factor together determine the penetration process. However, for a thick target impacted at high velocity, the impact factor and hardness factor together determine the penetration process. The penetration depth shows a 2/3 power relationship with impact velocity. For thick targets, similarity laws change along with impact velocity. The radii ratio between the projectile and penetration tunnel is proportional to the projectile’s diameter for intermediate velocity impact and only shows a relationship with the impact velocity for high velocity penetration.http://dx.doi.org/10.1155/2015/585230 |
| spellingShingle | Mingyang Wang Zheng Liu Yanyu Qiu Cuncheng Shi Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles Shock and Vibration |
| title | Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles |
| title_full | Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles |
| title_fullStr | Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles |
| title_full_unstemmed | Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles |
| title_short | Study on the Similarity Laws for Local Damage Effects in a Concrete Target under the Impact of Projectiles |
| title_sort | study on the similarity laws for local damage effects in a concrete target under the impact of projectiles |
| url | http://dx.doi.org/10.1155/2015/585230 |
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