Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments
The dispersion distribution characteristics of prefabricated fragments from an improvised explosive device (IED) are essential in defense technology development. To improve warhead design, it is essential to predict a fragment’s velocity and dispersion distribution accurately. This paper investigate...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/3144545 |
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| _version_ | 1850219182594981888 |
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| author | Ning Jiang Wen Bin Li Wen Jin Yao Da Cheng Gao |
| author_facet | Ning Jiang Wen Bin Li Wen Jin Yao Da Cheng Gao |
| author_sort | Ning Jiang |
| collection | DOAJ |
| description | The dispersion distribution characteristics of prefabricated fragments from an improvised explosive device (IED) are essential in defense technology development. To improve warhead design, it is essential to predict a fragment’s velocity and dispersion distribution accurately. This paper investigates a fragment’s flying angle from a detonated warhead with a cylindrical charge under a one-end central detonation. A modified formula for calculating the fragment dispersion distribution at each axial position of the warhead was obtained based on experimental data and model analysis. The impacts of the following parameters on the flying angle were considered in the formula: ratio of charge mass to shell mass, charge diameter, axial sparse effect, and relative axial shell position. The formula was verified by experimentation to be suitable for wide applications using different validation samples. Theoretical calculations with the formula show good accuracy in predicting the flying angle of cylindrical-shell fragments, agreeing with experimental data. The proposed model meets the error requirements of engineering applications. This work provides a theoretical foundation for subsequent research on damage effectiveness and IED damage assessment. |
| format | Article |
| id | doaj-art-749a97fcdcef4cd0b2e57a4ebdf9df9b |
| institution | OA Journals |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-749a97fcdcef4cd0b2e57a4ebdf9df9b2025-08-20T02:07:27ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/3144545Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead FragmentsNing Jiang0Wen Bin Li1Wen Jin Yao2Da Cheng Gao3ZNDY Ministerial Key LaboratoryZNDY Ministerial Key LaboratoryZNDY Ministerial Key LaboratoryZNDY Ministerial Key LaboratoryThe dispersion distribution characteristics of prefabricated fragments from an improvised explosive device (IED) are essential in defense technology development. To improve warhead design, it is essential to predict a fragment’s velocity and dispersion distribution accurately. This paper investigates a fragment’s flying angle from a detonated warhead with a cylindrical charge under a one-end central detonation. A modified formula for calculating the fragment dispersion distribution at each axial position of the warhead was obtained based on experimental data and model analysis. The impacts of the following parameters on the flying angle were considered in the formula: ratio of charge mass to shell mass, charge diameter, axial sparse effect, and relative axial shell position. The formula was verified by experimentation to be suitable for wide applications using different validation samples. Theoretical calculations with the formula show good accuracy in predicting the flying angle of cylindrical-shell fragments, agreeing with experimental data. The proposed model meets the error requirements of engineering applications. This work provides a theoretical foundation for subsequent research on damage effectiveness and IED damage assessment.http://dx.doi.org/10.1155/2022/3144545 |
| spellingShingle | Ning Jiang Wen Bin Li Wen Jin Yao Da Cheng Gao Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments Shock and Vibration |
| title | Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments |
| title_full | Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments |
| title_fullStr | Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments |
| title_full_unstemmed | Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments |
| title_short | Calculation Model of the Axial Dispersion Distribution of Cylindrical-Warhead Fragments |
| title_sort | calculation model of the axial dispersion distribution of cylindrical warhead fragments |
| url | http://dx.doi.org/10.1155/2022/3144545 |
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