Dynamical Fragmentation of Steel Cylinders Subjected to Internal Explosive Detonations

CHEN Hu; SHEN Zhengxiang; WANG Du; CHEN Dingyue; YUAN Shuqiang

doi:10.11858/gywlxb.20180527

Volume 32 Issue 5

Aug 2018

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Chinese Journal of High Pressure Physics > 2018 > 32(5): 054202.

CHEN Hu, SHEN Zhengxiang, WANG Du, CHEN Dingyue, YUAN Shuqiang. Dynamical Fragmentation of Steel Cylinders Subjected to Internal Explosive Detonations[J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 054202. doi: 10.11858/gywlxb.20180527

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CHEN Hu, SHEN Zhengxiang, WANG Du, CHEN Dingyue, YUAN Shuqiang. Dynamical Fragmentation of Steel Cylinders Subjected to Internal Explosive Detonations[J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 054202. doi: 10.11858/gywlxb.20180527

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Dynamical Fragmentation of Steel Cylinders Subjected to Internal Explosive Detonations

doi: 10.11858/gywlxb.20180527

1.
Ningbo Special Equipment Inspection & Research Institute, Ningbo 315048, China
2.
Ningbo Branch of Institute of Metal Materials, Ningbo 315103, China

Received Date: 15 Mar 2018
Rev Recd Date: 03 Apr 2018

Abstract

Abstract

Explosively driven fragmentation of material is a highly complex phenomenon.In this study, we evaluated the influence of explosive on the intrinsic fragmentation characteristics using hollow cylindrical steel shells, and investigated a new universal assessment criteria for the fragmentation of cylindrical shells.The results show that there is a linear relationship between the normalized Payman fragmentation parameter C_u of the shell and the charge/mass ratio C/M, for various combinations of shell material and explosive.The fragmentation parameter C_u of columnar part decreases by a constant value for the presence of end effect, while other factors including the shell thickness and the length of charge vacancy, have little effect on the fragmentation parameter C_u.The fragmentation performance of shell with no charge is relatively low and is only determined by shell material properties.
- cylinder,
- Payman fragmentation parameter,
- charge/mass ratio,
- end effect

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References(17)

References

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Dynamical Fragmentation of Steel Cylinders Subjected to Internal Explosive Detonations

doi: 10.11858/gywlxb.20180527

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Dynamical Fragmentation of Steel Cylinders Subjected to Internal Explosive Detonations

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