Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity
Impact experiments of large-caliber PELE with various inner-outer diameter ratio perforating RHA plate at low velocity were performed. Experimental results showed the size of perforated holes on plate, average diameter of damage area on witness plate, and number of behind-armor fragments will increa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2019-12-01
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| Series: | Defence Technology |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914718306391 |
| _version_ | 1819290160172367872 |
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| author | Mo-ang Lei Hai-fu Wang Qing-bo Yu Yuan-feng Zheng |
| author_facet | Mo-ang Lei Hai-fu Wang Qing-bo Yu Yuan-feng Zheng |
| author_sort | Mo-ang Lei |
| collection | DOAJ |
| description | Impact experiments of large-caliber PELE with various inner-outer diameter ratio perforating RHA plate at low velocity were performed. Experimental results showed the size of perforated holes on plate, average diameter of damage area on witness plate, and number of behind-armor fragments will increase as d/D increasing from 0.72 to 0.84. Expansion and fragmentation of large-caliber PELE in this condition were also numerically studied with ANSYS Autodyn. Then, an analytical model accounting for an additional radial shock wave was presented to predict radial expansion velocity and fragmentation of jacket, as well as an empirical approach to estimate diameter of damage area. Calculation results by these approaches were in good agreement with experiments and numerical simulations. Further discussion revealed that Shock/rarefaction wave interactions behavior varying with inner-outer diameter ratio is an important mechanism resulting in different lateral effect by PELE projectiles with various configurations. Keywords: PELE, Enhanced lateral effect, Penetration mechanics, Behind-armor fragments |
| first_indexed | 2024-12-24T03:18:19Z |
| format | Article |
| id | doaj.art-9879ec5884554e14af11e4be839cf476 |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-12-24T03:18:19Z |
| publishDate | 2019-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-9879ec5884554e14af11e4be839cf4762022-12-21T17:17:33ZengKeAi Communications Co., Ltd.Defence Technology2214-91472019-12-01156912922Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocityMo-ang Lei0Hai-fu Wang1Qing-bo Yu2Yuan-feng Zheng3State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaCorresponding author.; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing, 100081, ChinaImpact experiments of large-caliber PELE with various inner-outer diameter ratio perforating RHA plate at low velocity were performed. Experimental results showed the size of perforated holes on plate, average diameter of damage area on witness plate, and number of behind-armor fragments will increase as d/D increasing from 0.72 to 0.84. Expansion and fragmentation of large-caliber PELE in this condition were also numerically studied with ANSYS Autodyn. Then, an analytical model accounting for an additional radial shock wave was presented to predict radial expansion velocity and fragmentation of jacket, as well as an empirical approach to estimate diameter of damage area. Calculation results by these approaches were in good agreement with experiments and numerical simulations. Further discussion revealed that Shock/rarefaction wave interactions behavior varying with inner-outer diameter ratio is an important mechanism resulting in different lateral effect by PELE projectiles with various configurations. Keywords: PELE, Enhanced lateral effect, Penetration mechanics, Behind-armor fragmentshttp://www.sciencedirect.com/science/article/pii/S2214914718306391 |
| spellingShingle | Mo-ang Lei Hai-fu Wang Qing-bo Yu Yuan-feng Zheng Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity Defence Technology |
| title | Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity |
| title_full | Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity |
| title_fullStr | Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity |
| title_full_unstemmed | Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity |
| title_short | Fragmentation behavior of large-caliber PELE impacting RHA plate at low velocity |
| title_sort | fragmentation behavior of large caliber pele impacting rha plate at low velocity |
| url | http://www.sciencedirect.com/science/article/pii/S2214914718306391 |
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