Methodology for simulation of the jet formation process in an elongated shaped charge

Wojewódka, A.; Witkowski, Tomasz

doi:10.1134/s0010508214030150

Cited by 12 publications

(12 citation statements)

References 7 publications

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“…Simulation results were in agreement with the experimental ones. Linear shaped charges were investigated using LS-DYNA in [105] and the simulation results were compared with the experimental ones. Liner thickness and SO distance were studied in [106] using ABAQUS and the results were validated by experiments.…”

Section: Liner Geometriesmentioning

confidence: 99%

A Review of Shaped Charge Variables for its Optimum Performance

Khalid

Hussain

Abbas³

2019

Eng. Technol. Appl. Sci. Res.

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Shaped charge is a device for focusing the chemical energy of explosives to a particular point or line for penetration or cutting purpose respectively. They are used for the penetration or cutting of various types of targets on land, water, underground, underwater, or air. Their shape is either conical or linear and consists of explosive, casing and liner. The liner is bent towards the central axis producing a thin hypervelocity jet by the energy released as a result of the explosive detonation. This jet is utilized against the target. Shaped charges can perforate or penetrate targets like aircrafts, ships, submarines, armored vehicles, battle tanks, and bunkers. This paper presents a detailed review of analytical works, computer simulations, and experimental results related to the liner. Among modern diagnostic techniques flash x-rays, radiography is most used in the experiments performed in the last 40 years. Powder metallurgy, which started in the late twentieth century raised the efficiency of shaped charges to new altitudes. The efficiency of the shaped charge depends on numerous factors such as explosive’s type, liner’s material, geometry and metallurgy, manufacturing technique, and casing thickness. Factors concerning the liner’s material, metallurgical advancements, and geometry are discussed chronologically and in detail.

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Section: Liner Geometriesmentioning

confidence: 99%

A Review of Shaped Charge Variables for its Optimum Performance

Khalid

Hussain

Abbas³

2019

Eng. Technol. Appl. Sci. Res.

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“…One of the main parameters of shaped charge effectiveness is the depth of the hole in the target. This is determined predominantly by the charge structure, the detonation velocity of the explosive used, the precision of liner production, as well as other parts of the charge [4]. A number of shaped charges form not jets, but projectiles, which move a few times slower than jets and have a mass comparable to that of the liner.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

New Functional Materials in Mechanical Engineering and Geology

Wojewódka¹,

Voitenko²,

Zakusylo³

et al. 2019

Cent. Eur. J. Energ. Mater.

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“…The Jones-Wilkins-Lee (JWL) equation of state is defined as a function of relative pressure, volume, and internal energy. [18][19][20] The equation of state is used to determine the pressure of high-explosive detonation products…”

Section: The Numerical Calculation Of the Shaped Charge For The Cuttimentioning

confidence: 99%

“…The energy of detonation gas consists of two parts: the airflow potential energy and the kinetic energy. 18 The degree of energy concentration is determined by the energy per unit volume, which is the energy density E. Energy density can be expressed by the following formula…”

Section: Theory Of Linear Cumulative Cuttingmentioning

confidence: 99%

Blasting demolition of steel structure using linear cumulative cutting technology

Duan

Zhou

Zheng

et al. 2017

Advances in Mechanical Engineering

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A cumulative cutting blasting technology was used for cutting a 20-mm-thick steel plate for the demolition of a steel structure. The main factors affecting the outcome of this approach included the opening angle of the liner, the height, and the section form of the charge bed. Based on the theory of linear cumulative cutting, the liner cutter and cutting test were designed to blast the steel plate. The dynamics of the entire process were analyzed with numerical calculation, including jet formation, penetration of targets, and cutting processes. Each parameter of the cutter was analyzed and optimized. Finally, the liner cutter and cutting blasting technology were applied for the demolition of a steel structure arch bridge. The study results provided the theory as well as details of a successful application for the cumulative cutting blasting of large steel structures and other similar projects.

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Methodology for simulation of the jet formation process in an elongated shaped charge

Cited by 12 publications

References 7 publications

A Review of Shaped Charge Variables for its Optimum Performance

A Review of Shaped Charge Variables for its Optimum Performance

New Functional Materials in Mechanical Engineering and Geology

Blasting demolition of steel structure using linear cumulative cutting technology

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