scholarly journals Influence of shaped charge structure parameters on the formation of linear explosively formed projectiles

2021 ◽  
Author(s):  
Tian-bao Ma ◽  
Jing Liu ◽  
Qi Wang
Keyword(s):  
Shaped Charge ◽  
Structure Parameters ◽  
Charge Structure

Design and Penetration Performance of Annular Shaped Charge Structure

2008 ◽  
Vol 33-37 ◽  
pp. 1175-1180
Author(s):  
Wang Cheng ◽  
Tian Bao Ma ◽  
Jian Guo Ning
Keyword(s):  
Detonation Wave ◽  
Wave Front ◽  
Shaped Charge ◽  
Penetration Process ◽  
Charge Structure ◽  
Detonation Wave Front ◽  
Numerical Studies ◽  
External Charge

Based on the principle of the equivalent momentum of the corresponding elements for internal and external liners, annular shaped charge structure is proposed. The generatrix analytical equations for the external surfaces of the external liner and external charge are deduced. Experimental and numerical studies are conducted to investigate the formation and penetration process of the jet for the annular shaped charge under different initiation radiuses, and the initiation radius corresponding to the detonation wave front matched with the liner is optimized. At this radius, shaped charge can form an ideal cylindrical jet. Moreover, the diameter of the jet approximates the theoretical diameter of the jet, and has satisfactory symmetry and focus.

Uniform Design on the Forward Annular Shaped Charge of Torpedo Tandem Warhead

2014 ◽  
Vol 556-562 ◽  
pp. 1263-1266
Author(s):  
Lei FU ◽  
Wei Li Wang ◽  
Ying Zi Jiang ◽  
Xue Feng Huang ◽  
Jin Lv
Keyword(s):  
Penetration Depth ◽  
Design Method ◽  
Uniform Design ◽  
Shaped Charge ◽  
Opening Angle ◽  
Structure Parameters ◽  
Uniform Design Method ◽  
3D Software

By using LS-DYNA 3D software, the structure of forward annular shaped charge of torpedo tandem warhead is optimized in the simulation with uniform design method. During the simulation of annular shaped charge penetration into the plate underwater, the liner opening angle,liner thickness,charge height and charge angle are taken as factors, while the penetration depth is taken as index. The optimized structure parameters resulted form simulation can be used in the design of torpedo.

The Numerical Simulation of Shaped Charge Jet under the Influence of Charge Structure

2013 ◽  
Vol 444-445 ◽  
pp. 996-1000
Author(s):  
Hong Fei Qu ◽  
Feng Han ◽  
Fang Chen
Keyword(s):  
Numerical Simulation ◽  
Detonation Velocity ◽  
Numerical Experiments ◽  
Shaped Charge ◽  
Computational Results ◽  
Forming Process ◽  
Charge Structure ◽  
The Future ◽  
Shaped Charge Jet

In this article, through numerical simulation mechanic we investigated that charge structure, exploiting distinct radial detonation velocity explosives, has a remarkable influence on the forming process of shaped charge jet. Based on the numerical computational results, the contribution of charge proportion and filling mode to the shape and velocity of shaped charge jet are mainly analyzed, aiming to identify the best charge proportion. It is demonstrated from numerical experiments that, sub-munitions power is significantly enhanced premised on invariable size of sub-munitions. And this observation can be adopted to design of the warhead arrayed in net in the future.

SH-Wave Scattering From the Interface Defect

2017 ◽  
Vol 5 (1) ◽  
pp. 45-50
Author(s):  
Myron Voytko ◽  
◽  
Yaroslav Kulynych ◽  
Dozyslav Kuryliak
Keyword(s):  
Half Space ◽  
Wave Diffraction ◽  
Scattered Field ◽  
Wave Scattering ◽  
Elastic Layer ◽  
Analytical Form ◽  
Structure Parameters ◽  
Sh Wave ◽  
Interface Defect ◽  
Hopf Method

The problem of the elastic SH-wave diffraction from the semi-infinite interface defect in the rigid junction of the elastic layer and the half-space is solved. The defect is modeled by the impedance surface. The solution is obtained by the Wiener- Hopf method. The dependences of the scattered field on the structure parameters are presented in analytical form. Verifica¬tion of the obtained solution is presented.

Sign in / Sign up

Export Citation Format

Share Document