The analytical model ATOS-M for computing of the shaped charge jet penetration parameters

Svirsky, O. V.; Vlasova, M. A.; Korotkov, Mikhail I.; Krutyakov, Viktor A.; Toropova, T. A.

doi:10.1016/j.ijimpeng.2003.10.015

Cited by 15 publications

(3 citation statements)

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“…Правдоподобную информацию о том, какой добавок к пробивному действию КЗ можно получить, если включить " в работу" хвостовые участки КС, дают данные расчетов [18], проведенных на основании методики [24], учитывающей влияние на пробивное действие КЗ точности его изготовления. В указанных расчетах задавалась постоянная по длине КС скорость бокового дрейфа ее участков.…”

Section: потенциальная пробивная способность хвостовых участков кумулятивных струйunclassified

О Постановке Экспериментов По Определению Пробивной Способности Хвостовых Участков Кумулятивных Струй

Федоров¹

2021

Журнал Технической Физики

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According to the calculations, the penetration effect of shaped charges can be significantly increased (by 40–50 % in the case of a high-strength steel target) if due increasing the accuracy of their manufacture the lower speed threshold is reduced at which the penetration of the tail sections of the shaped-charge jet into the target is stopped. For experimental confirmation of these data, it is proposed to study in detail the penetrability of the tail sections of shaped-charge jets using cut-off rods made of high-density material located at a short distance from the shaped charge (less than its diameter) and designed to eliminate the faster part of the jet. Based on numerical simulation in the framework of a two-dimensional axisymmetric problem of continuum mechanics, possible parameters of the cut-off rods for generating solitary "tails" of shaped-charge jets with different velocities of the leading element are predicted.

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Section: потенциальная пробивная способность хвостовых участков кумулятивных струйunclassified

О Постановке Экспериментов По Определению Пробивной Способности Хвостовых Участков Кумулятивных Струй

Федоров¹

2021

Журнал Технической Физики

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“…In terms of spaced targets, the interaction of the Whipple shields package against the shaped charge jet has been widely studied [14,15]. O. Svirskii et al [16] discussed the penetration capability of shaped charges at stand-off distances up to 100 charge diameters which by far exceeded the standard area of their application (2 to 7 CD). Horsfall [17] used commercially available shaped charges of 33 mm charge diameter to assess the effects of spaced RHA armor on shaped charge wartip penetration in terms of penetration depth into a semi-infinite steel witness stack.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Study on Jetting Projectile Charge Penetrating Multi-Layer Spaced Targets with Large Spacing

et al. 2023

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To study the ability of shaped charges to penetrate typical ship targets, two shaped charges with the same diameter of 200 mm but different configurations are designed to generate two forms of jetting projectile charge (JPC). Based on the protective structure of typical ship targets, static penetration tests are performed using the two types of a shaped charge with copper liner and 10-layer spaced targets with a total span of 16 m which is made in 921A steel. Numerical simulations under the same working conditions are also carried out. It is found that the simulation results of the penetration depth and the number of layers of target perforated by the JPC are much greater than the experimental results. In fact, the JPC breaks up when moving to a certain distance, and the JPC segments after breakup have a transverse drift velocity, causing the segment to deviate from the original penetrating channel. The influence of drift velocity after JPC fracture cannot be considered in numerical simulation, resulting in significant differences between numerical simulation and experimental results. Thus, this paper proposed a segment-based numerical simulation method and analyzed the penetration process of JPC fragments after JPC fracture. Combined with experimental results, the radial motion after JPC fracture and the final distribution of penetration holes can be well revealed. It is found that the penetration depth and the number of layers of target perforated by the JPC depend on the tip velocity of each segment and the jet length.

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“…В свободном полете КС сначала удлиняются с сохранением сплошности, а затем распадаются на отдельные безградиентные элементы [5][6][7]. Суммарная длина элементов, образовавшихся после разрыва КС, определяет предельное пробивное действие кумулятивного заряда (КЗ) [4, 8,9].…”

Section: Introductionunclassified

Экспериментальное Исследование Влияния Магнитного Поля Удлиненного Соленоида На Растяжение Металлических Кумулятивных Струй

Федоров¹,

Бабкин²,

Маринин³

2020

Журнал Технической Физики

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Results of the experimental study of the long solenoid longitudinal magnetic field influence on stretching of metal shaped-charge jets in the free flight are presented. Shaped charges with a diameter of 50 mm with copper conic liner were used in experiments. Parameters of the solenoid discharge circuit with the capacitive store of energy were such that the characteristic time moments of magnetic induction maximum achievement made about 100 μs. For the magnetic field parameters realized in experiments with the maximum value of an induction up to 10 T the small increase in depth of steel target penetration was recorded which wasn't exceeding 10 %. The possible reasons of big difference of the received results with the results of similar experiments are discussed.

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The analytical model ATOS-M for computing of the shaped charge jet penetration parameters

Cited by 15 publications

References 0 publications

О Постановке Экспериментов По Определению Пробивной Способности Хвостовых Участков Кумулятивных Струй

О Постановке Экспериментов По Определению Пробивной Способности Хвостовых Участков Кумулятивных Струй

Simulation and Experimental Study on Jetting Projectile Charge Penetrating Multi-Layer Spaced Targets with Large Spacing

Экспериментальное Исследование Влияния Магнитного Поля Удлиненного Соленоида На Растяжение Металлических Кумулятивных Струй

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