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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
Citation: 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
shu

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
  • 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 Cu of the shell and the charge/mass ratio C/M, for various combinations of shell material and explosive.The fragmentation parameter Cu 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 Cu.The fragmentation performance of shell with no charge is relatively low and is only determined by shell material properties.

     

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