Numerical study on water jet formation of semi-ring shaped charge

Hong Bo Pei; Qing Jie Jiao; Jian Xin Nie

doi:10.3969/j.issn.1006-9941.2013.02.019

Numerical study on water jet formation of semi-ring shaped charge

Hong Bo Pei^*
, Qing Jie Jiao
, Jian Xin Nie

^*Corresponding author for this work

School of Mechatronical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

In order to develope a device that could disrupt explosive components quickly and easily, a special shaped charge structure was studied. AUTODYN two-dimensional program was used to simulate the forming progress of water jet. The speed of water jet with different thicknesses of explosive was obtained. The results show that that the device can generate a water jet. The water jet tip velocity and average velocity increase with thickness of explosive. And, when the thickness of explosive range from 4 to 6 mm, the water jet tip velocity ranges from 861 to 1282 m·s^-1 and the average water jet velocity range form 393 to 571 m·s^-1. The water jet can disrupt explosive objects safely at this velocity range in theory.

Original language	English
Pages (from-to)	249-252
Number of pages	4
Journal	Hanneng Cailiao/Chinese Journal of Energetic Materials
Volume	21
Issue number	2
DOIs	https://doi.org/10.3969/j.issn.1006-9941.2013.02.019
Publication status	Published - Apr 2013

Keywords

Disruption of explosive components
Explosion mechanics
High speed water jet
Numerical simulation
Shaped charge

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10.3969/j.issn.1006-9941.2013.02.019

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title = "Numerical study on water jet formation of semi-ring shaped charge",

abstract = "In order to develope a device that could disrupt explosive components quickly and easily, a special shaped charge structure was studied. AUTODYN two-dimensional program was used to simulate the forming progress of water jet. The speed of water jet with different thicknesses of explosive was obtained. The results show that that the device can generate a water jet. The water jet tip velocity and average velocity increase with thickness of explosive. And, when the thickness of explosive range from 4 to 6 mm, the water jet tip velocity ranges from 861 to 1282 m·s-1 and the average water jet velocity range form 393 to 571 m·s-1. The water jet can disrupt explosive objects safely at this velocity range in theory.",

keywords = "Disruption of explosive components, Explosion mechanics, High speed water jet, Numerical simulation, Shaped charge",

author = "Pei, \{Hong Bo\} and Jiao, \{Qing Jie\} and Nie, \{Jian Xin\}",

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doi = "10.3969/j.issn.1006-9941.2013.02.019",

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journal = "Hanneng Cailiao/Chinese Journal of Energetic Materials",

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publisher = "Institute of Chemical Materials, China Academy of Engineering Physics",

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T1 - Numerical study on water jet formation of semi-ring shaped charge

AU - Pei, Hong Bo

AU - Jiao, Qing Jie

AU - Nie, Jian Xin

PY - 2013/4

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N2 - In order to develope a device that could disrupt explosive components quickly and easily, a special shaped charge structure was studied. AUTODYN two-dimensional program was used to simulate the forming progress of water jet. The speed of water jet with different thicknesses of explosive was obtained. The results show that that the device can generate a water jet. The water jet tip velocity and average velocity increase with thickness of explosive. And, when the thickness of explosive range from 4 to 6 mm, the water jet tip velocity ranges from 861 to 1282 m·s-1 and the average water jet velocity range form 393 to 571 m·s-1. The water jet can disrupt explosive objects safely at this velocity range in theory.

AB - In order to develope a device that could disrupt explosive components quickly and easily, a special shaped charge structure was studied. AUTODYN two-dimensional program was used to simulate the forming progress of water jet. The speed of water jet with different thicknesses of explosive was obtained. The results show that that the device can generate a water jet. The water jet tip velocity and average velocity increase with thickness of explosive. And, when the thickness of explosive range from 4 to 6 mm, the water jet tip velocity ranges from 861 to 1282 m·s-1 and the average water jet velocity range form 393 to 571 m·s-1. The water jet can disrupt explosive objects safely at this velocity range in theory.

KW - Disruption of explosive components

KW - Explosion mechanics

KW - High speed water jet

KW - Numerical simulation

KW - Shaped charge

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JF - Hanneng Cailiao/Chinese Journal of Energetic Materials

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Numerical study on water jet formation of semi-ring shaped charge

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