Integration of an Over-Fly Top Attack Shaped Charge Jet within a Kinetic Energy Penetrator for Enhanced Multiple-Effects

Stewart, Barry; Lewtas, I.

doi:10.12783/ballistics2017/16952

Cited by 3 publications

(2 citation statements)

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“…However, shaped charge is very sensitive to structural characteristics, and the asymmetry of the asymmetric section weapons is a challenge to the design of the shaped charge. Barry Stewart et al [ 8 ] studied the feasibility of emerging a smear-compensated over-fly top attack SCJ. In their work, a novel side-mounted initiation train was designed to optimize space and maintain an antistructures emplacement capability.…”

Section: Introductionmentioning

confidence: 99%

Research on the Formation Characteristics of the Shaped Charge Jet from the Shaped Charge with a Trapezoid Cross-Section

Huang

et al. 2022

Materials

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The formation characteristics of the shaped charge jet (SCJ) from the shaped charge with a trapezoid cross-section is analyzed in this work. A theoretical model was developed to analyze the collapsing mechanism of the liner driven by the charge with a trapezoid cross-section. Based on the theoretical model, the axial and radial velocities of the SCJ from different trapezoid cross-section charges. The pressure model was employed to calculate the velocity for the subcaliber shaped charge, which was verified through numerical simulation. The results show that the influence of the angle of the trapezoidal charge (acute angle) on the axial velocity of the SCJ is not distinct, whereas the variation of the radial velocity of the shaped charge jet is obvious as the change in the angle of the trapezoidal charge. In addition, the related X-ray experiments were conducted to verify the theory. The theoretical results correlate with the experimental results reasonably well.

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Section: Introductionmentioning

confidence: 99%

Research on the Formation Characteristics of the Shaped Charge Jet from the Shaped Charge with a Trapezoid Cross-Section

Huang

et al. 2022

Materials

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“…Shaped charge collapse liners to EFP, JPC, and JET penetrators with ultra-high detonation pressure [1][2][3][4][5][6]. In the weapon industry, the penetrators are applied to pierce armour equipment and destroy solid targets as concrete [7][8][9][10]; the penetrators are also valuable in piercing oil exploration wells for civil application.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of the Dynamic Deformation of Pure Molybdenum at High Strain Rates and High Temperatures

Chen

Wang

et al. 2021

Materials

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To study the dynamic plastic properties of high-purity molybdenum materials at high temperature and high strain rate, we designed tests to compare the mechanical behaviour of two high-purity molybdenum materials with different purities and two with different processing deformation conditions under dynamic impact compression in the temperature range of 297–1273 K. We analysed the molybdenum materials’ sensitivities to the strain-hardening effect, strain rate-strengthening effect, and temperature-softening effect as well as the comprehensive response to the combined effect of the strain rate and temperature, the adiabatic impact process, and the microstructure at high temperature and high strain rate. Furthermore, based on a modified Johnson–Cook constitutive model, we quantitatively analysed the flow stresses in these materials. The calculation results strongly agree with the test results. Our findings indicate that the high-purity molybdenum materials show consistent sensitivity to the combined effect of strain rate and temperature regarding the dynamic plastic properties. The materials with higher purity are less sensitive to the combined effect of the strain rate and temperature, and those with less processing deformation experience more pronounced strain-hardening effects. Under high strain rate at room temperature, these materials are highly susceptible to impact embrittlement and decreases in dynamic plastic properties due to intergranular fracture in the internal microstructure. However, increasing the impact environment temperature can significantly improve their plastic properties. The higher the temperature, the better the plastic properties and the higher the impact toughness.

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

Wang

Huang

et al. 2022

Journal of Energetic Materials

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Integration of an Over-Fly Top Attack Shaped Charge Jet within a Kinetic Energy Penetrator for Enhanced Multiple-Effects

Cited by 3 publications

References 0 publications

Research on the Formation Characteristics of the Shaped Charge Jet from the Shaped Charge with a Trapezoid Cross-Section

Research on the Formation Characteristics of the Shaped Charge Jet from the Shaped Charge with a Trapezoid Cross-Section

Comparative Study of the Dynamic Deformation of Pure Molybdenum at High Strain Rates and High Temperatures

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

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