Dispersion properties and rapid calculation of fragment force field of D-shaped fragmentation warhead

LI Xiangyu; LI Zhenduo; LIANG Minzu

doi:10.11883/bzycj-2017-0420

Volume 39 Issue 4

Mar. 2019

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LI Xiangyu, LI Zhenduo, LIANG Minzu. Dispersion properties and rapid calculation of fragment force field of D-shaped fragmentation warhead[J]. Explosion And Shock Waves, 2019, 39(4): 043301. doi: 10.11883/bzycj-2017-0420

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LI Xiangyu, LI Zhenduo, LIANG Minzu. Dispersion properties and rapid calculation of fragment force field of D-shaped fragmentation warhead[J]. Explosion And Shock Waves, 2019, 39(4): 043301. doi: 10.11883/bzycj-2017-0420

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Dispersion properties and rapid calculation of fragment force field of D-shaped fragmentation warhead

doi: 10.11883/bzycj-2017-0420

College of Liberal Art and Science, National University of Defense Technology, Changsha 410073, Hunan, China

Received Date: 2017-11-17
Rev Recd Date: 2018-07-01

Available Online: 2019-03-25

Publish Date: 2019-04-01

Abstract

Abstract

Rapid calculation of the fragment force field is a key technique for quick damage assessment of warhead to target. In this work we carried out experiment and simulation on the dispersion patterns of three D-shaped warheads with the angle 90°, 120° and 150° and investigated the influences of the shape’s width and detonation mode on the distribution of the fragment force field. The results showed that 90% of the fragments in the three structures had azimuths of 21.16°, 23.88° and 30.08°, respectively; the eccentric line detonation and the two ends’ eccentric detonations were found to be better detonation modes, and the total energy of the fragments in 20° azimuth was respectively 3.4 and 3.3 times higher than the energy of the conventional fragmentation warhead. Based on the rapid calculation formulas of the fragment field of three typical shapes, we proposed that the force field of differently shaped warheads were obtained by constructing the quadratic interpolation function, providing an effective method for rapidly analyzing the distribution of the fragment field in the D-shaped warhead.
- D-shaped warhead,
- fragment dispersion,
- detonation mode,
- rapid calculation

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References(12)

References

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