Improvement of the shaped charge jet penetration capability by modifying the liner form using AUTODYN-2D

Kemmoukhe, Hicham; Savić, Saša; Terzić, Slavica; Lisov, Miodrag; Rezgui, Narimane; Sedra, Housseyn

doi:10.5937/str1901010k

Cited by 4 publications

(12 citation statements)

References 4 publications

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“…For each liner material, Figure 5 plots the jet penetration depths obtained by Autodyn-2Dhydrocode and Eqn. (7), respectively. It is seen from the figure that the predicted penetration depth results for each liner material using both algorithms are close.…”

Section: Table (7)mentioning

confidence: 97%

“…The situation of jet particlization is examined to select the proper equation predicting the penetration depth H. For each liner thickness, the parameter values for running Eqn. (7) and the predicting penetration depth are listed in Table 7. In addition, the predicted penetration depth versus liner thickness is plotted on figure 4.…”

Section: Validation Of the Penetration Depth Predictionsmentioning

confidence: 99%

“…Good agreement is obtained between the predictions of Eqn. (7) and the corresponding measurements of Ref. [10].…”

Section: Validation Of the Penetration Depth Predictionsmentioning

confidence: 99%

“…In addition, the jetting analysis algorithm isalso used to determine the values of Vtip, Vmin, Zo necessary for calculating the penetration depth of the formed jet from each liner material into steel target using Eqn. (7).…”

Section: Table (7)mentioning

confidence: 99%

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Influence of different shaped charge parameters on jet penetration into metallic target

El-Sayed

Elshenawy²,

Shaker

et al. 2022

J. Phys.: Conf. Ser.

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In this paper, Autodyn-2D hydrocode is used to investigate the influence of shaped charge parameters on penetration performance. Two different algorithms of Autodyn-2D hydrocode are used to predict the jet penetration depthsinto steel target; they are: i)jetting analyses algorithm, and ii) jet formation and penetration algorithm. To validate the predictions of the present work, Autodyn hydrocode is fed with the data of tested shaped charges with different liner thicknesses. The predicted penetration depths are compared with the corresponding experimental measurements; good agreement is generally obtained. Then, the shaped charge with liner thickness of 1.1mm, that gives the maximum jet penetration into steel target, is selected to study the influence of other different shaped charge parameters on its penetration performance. These parameters include form, material and thickness of liner, standoff distance and type of high explosive material. The influence of each studied parameter is evaluated by comparing the jet penetration performance with that of the selected shaped charge. Samples of the obtained predicted results showing the influence of each shaped charge parameter on jet formation and its penetration depth into steel target are presented and discussed. Four configurations are simulated into Autodyn-2D hydrocode considering the parameters that improve the penetration performance of the selected shaped charge. The obtained predictions result in the replacement of RDX by HMX explosive type and increasing the standoff distance from 29 to 40mm of the selected shaped charge will improve its penetration capability by 28.5%.

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Section: Table (7)mentioning

confidence: 97%

Section: Validation Of the Penetration Depth Predictionsmentioning

confidence: 99%

“…Good agreement is obtained between the predictions of Eqn. (7) and the corresponding measurements of Ref. [10].…”

Section: Validation Of the Penetration Depth Predictionsmentioning

confidence: 99%

Section: Table (7)mentioning

confidence: 99%

See 2 more Smart Citations

Influence of different shaped charge parameters on jet penetration into metallic target

El-Sayed

Elshenawy²,

Shaker

et al. 2022

J. Phys.: Conf. Ser.

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“…shows the initial geometry of standard EFP used in numerical simulations in this paper. [6] Figure 5. Geometry of simulated EFP [7] The initial geometry used in this investigation is shown in Fig.…”

Section: Numerical Modelmentioning

confidence: 99%

Numerical simulations of the formation behavior of explosively formed projectiles

Salkičević

2022

Defense and Security Studies

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Explosively formed projectile (EFP) is a self-forging shape charged structure having very high penetration ability compared to conventional kinetic energy projectile. The penetration capability of an EFP is strongly dependent on various design parameters. The main parameters can be roughly divided into geometric and material parameters used in the warhead configuration. The present research is an effort to study the effect of metal casing thickness, type of metal used for casing, explosive type, liner thickness, type and configuration on the formation of EFP. Effectivness of an EFP is studied in terms of final velocity and shape of formed penetrator. The study is carried out by performing a number of simulations by using explicit finite element (FE) hydrocode ANSYS/Autodyn.

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Numerical Analyses of Perforation and Formation Damage of Sandstone Gas Reservoirs

Liang,

Zhao,

Jin

2024

Processes

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Shaped charge perforation is an important technology for sandstone gas reservoirs. In the process of shaped charge perforating, the initial permeability and porosity of the formation are greatly reduced, directly affecting oil and gas production. This paper uses smooth particle hydrodynamics (SPH) and finite element methods (FEMs) to study the formation damage caused by the shaped charge perforation. In this perforation simulation, the impact characteristics of the metal jet formed by the liner are coupled with the damage characteristics of the sandstone. A new mathematical model is proposed to describe the damage of permeability and porosity based on the Morris and Xue models. The simulated results show that a large-scale abdominal section appears at the perforation site, and the axis of the hole tilts with the increase in the perforation depth. The porosity damage at the perforation site is the greatest, up to 60%, while the permeability recovers to 90% of its initial state after pressure relief. The degree of porosity damage decreases with the increase in negative pressure, and when the negative pressure is 30 MPa, it may cause a large amount of sand production.

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Improvement of the shaped charge jet penetration capability by modifying the liner form using AUTODYN-2D

Cited by 4 publications

References 4 publications

Influence of different shaped charge parameters on jet penetration into metallic target

Influence of different shaped charge parameters on jet penetration into metallic target

Numerical simulations of the formation behavior of explosively formed projectiles

Numerical Analyses of Perforation and Formation Damage of Sandstone Gas Reservoirs

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