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Journal of Energetic Materials Volume 42, 2024 - Issue 2
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Research Article

Pressure on liner surface of the shaped charge with isosceles trapezoidal cross section

Yuting Wanga School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, PR China;b College of Field Engineering, Army Engineering University of Pla, Nanjing, ChinaView further author information
,
Zhengxiang Huanga School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, PR ChinaView further author information
,
Qiangqiang Xiaoa School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, PR ChinaCorrespondence[email protected]
View further author information
,
Bin Maa School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, PR ChinaView further author information
,
Xin Jiaa School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, PR ChinaView further author information
&
Xudong Zua School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, PR ChinaView further author information
Pages 230-248 | Published online: 15 Apr 2022
 
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ABSTRACT

An analytical model for calculating the pressure of detonation product on the liner surface was presented. Calculation results show that when the liner structure is the same, increasing the inscribed circle diameter of the charge cross section can reduce the influence of the charge nonaxisymmetry, when it is greater than the critical value, that is, 1.66× liner diameter, the pressure on liner surface is distributed axisymmetrically. Therefore, the jet of the shaped charge with isosceles trapezoidal cross section can be prevented from having an offset velocity by the above-mentioned method. This finding is verified through numerical simulation.

Disclosure Statement

The authors declare no conflict of interest.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [11972196, 11702144, 11872214]; Natural Science Foundation of Jiangsu Province [BK20190433].

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