The role of tangential velocity in explosive initiation by fragment impact
An initiation study is presented in which we examine the effect of the normal and the tangential velocity components of a fragment that impacts a covered and a bare Comp-B explosive. The study is based on calibrated numerical Lagrangian simulations using the LS-Dyna hydrocode. A special procedure wa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2022-12-01
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| Series: | Defence Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214914722000903 |
| _version_ | 1811201800721661952 |
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| author | Vitaly Leus Roy Ceder Valentin Ognev Meir Mayseless |
| author_facet | Vitaly Leus Roy Ceder Valentin Ognev Meir Mayseless |
| author_sort | Vitaly Leus |
| collection | DOAJ |
| description | An initiation study is presented in which we examine the effect of the normal and the tangential velocity components of a fragment that impacts a covered and a bare Comp-B explosive. The study is based on calibrated numerical Lagrangian simulations using the LS-Dyna hydrocode. A special procedure was developed to present the estimated initiation point and the shock wave transition into detonation for various impact angles. The influence of the fragment strength and the steel cover thickness on the detonation threshold were also examined. The velocity threshold results are presented and used to modify the Jacobs-Roslund initiation model. |
| first_indexed | 2024-04-12T02:28:00Z |
| format | Article |
| id | doaj.art-8be653f11f7b4543a824931110c4672b |
| institution | Directory Open Access Journal |
| issn | 2214-9147 |
| language | English |
| last_indexed | 2024-04-12T02:28:00Z |
| publishDate | 2022-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Defence Technology |
| spelling | doaj.art-8be653f11f7b4543a824931110c4672b2022-12-22T03:51:55ZengKeAi Communications Co., Ltd.Defence Technology2214-91472022-12-01181221902197The role of tangential velocity in explosive initiation by fragment impactVitaly Leus0Roy Ceder1Valentin Ognev2Meir Mayseless3RAFAEL Ballistic Center, P.O. Box 2250, Haifa, IsraelRAFAEL Ballistic Center, P.O. Box 2250, Haifa, Israel; Corresponding author.RAFAEL Ballistic Center, P.O. Box 2250, Haifa, IsraelFaculty of Engineering Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 84105, IsraelAn initiation study is presented in which we examine the effect of the normal and the tangential velocity components of a fragment that impacts a covered and a bare Comp-B explosive. The study is based on calibrated numerical Lagrangian simulations using the LS-Dyna hydrocode. A special procedure was developed to present the estimated initiation point and the shock wave transition into detonation for various impact angles. The influence of the fragment strength and the steel cover thickness on the detonation threshold were also examined. The velocity threshold results are presented and used to modify the Jacobs-Roslund initiation model.http://www.sciencedirect.com/science/article/pii/S2214914722000903High explosive initiationLee-tarverJacobs-roslundFragment |
| spellingShingle | Vitaly Leus Roy Ceder Valentin Ognev Meir Mayseless The role of tangential velocity in explosive initiation by fragment impact Defence Technology High explosive initiation Lee-tarver Jacobs-roslund Fragment |
| title | The role of tangential velocity in explosive initiation by fragment impact |
| title_full | The role of tangential velocity in explosive initiation by fragment impact |
| title_fullStr | The role of tangential velocity in explosive initiation by fragment impact |
| title_full_unstemmed | The role of tangential velocity in explosive initiation by fragment impact |
| title_short | The role of tangential velocity in explosive initiation by fragment impact |
| title_sort | role of tangential velocity in explosive initiation by fragment impact |
| topic | High explosive initiation Lee-tarver Jacobs-roslund Fragment |
| url | http://www.sciencedirect.com/science/article/pii/S2214914722000903 |
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