Ballistic performance study on the composite structures of multi-layered targets subjected to high velocity impact by copper EFP

Liu, Jianfeng; Long, Yuan; Ji, Chong; Liu, Qiang; Zhong, Mingshou; Song, Ge

doi:10.1016/j.compstruct.2017.09.072

Cited by 9 publications

(5 citation statements)

References 39 publications

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“…Kurzawa (2018) selected ARMOX•370T armor steel and an EFP charge in an anti-armor mine as the research object and analyzed the dynamic plastic deformation characteristics of armor materials through metallographic inspection of the armor steel after penetration. Liu (2018Liu ( ,2017 carried out experiments on the impacts of EFPs on multilayer steel plates of different materials, tested and analyzed the microstructural evolution and fracture morphology characteristics of the wall surface of the bullet holes, and revealed the damage mechanism of EFP materials on the target plates. At present, most of the research on EFP penetration used a vertical approach as the initial condition, while oblique incidence is the more common approach attitude of EFPs in practice.…”

Section: Intruductionmentioning

confidence: 99%

Oblique penetration performance of Explosively Formed Projectile (EFP) on 6061 aluminum target:experiments and simulations

Gao,

Ji,

Wang

et al. 2024

Lat. Am. j. solids struct.

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In this paper, the penetration resistance of 6061 aluminum plates to explosively formed projectiles (EFPs) at the incidence angles of 0°, 15°, 30°, and 45° was studied. The penetration process was roughly divided into three typical stages-the plastic flanging stage of the target, the righting stage of the projectile, and the plug formation stage of the target. Through the energy analysis, the energy consumption of the aluminum plate increased with the increase in the incidence angle during the entire penetration process. Through the microscopic analysis of the perforated wall surface of the aluminum plate, it was found that there were distinct boundaries and differences between the plastic reaming zone and the punching plug fracture zone.. Overall, four kinds of classification modes were proposed for the damage of the aftereffect plate, which provides a method to evaluate the aftereffect of EFP oblique penetration into 6061 aluminum plates.

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Section: Intruductionmentioning

confidence: 99%

Oblique penetration performance of Explosively Formed Projectile (EFP) on 6061 aluminum target:experiments and simulations

Gao,

Ji,

Wang

et al. 2024

Lat. Am. j. solids struct.

Self Cite

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show abstract

“…The ballistic impact of materials and structures is characterized by a very complex mechanical-thermal coupled process which mainly depends on the material properties and geometrical parameters of the target and the projectile, e.g., strength, toughness, shape and size [ 9 , 10 , 11 ]. These extreme complexities, which involve high non-linearity, singularity and dependence on a large number of parameters, render it impossible to derive a closed-form analytical solution.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty Quantification of Material Properties in Ballistic Impact of Magnesium Alloys

Sun

2022

Materials

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The design and development of cutting-edge light materials for extreme conditions including high-speed impact remains a continuing and significant challenge in spite of steady advances. Magnesium (Mg) and its alloys have gained much attention, due to their high strength-to-weight ratio and potential of further improvements in material properties such as strength and ductility. In this paper, a recently developed computational framework is adopted to quantify the effects of material uncertainties on the ballistic performance of Mg alloys. The framework is able to determine the largest deviation in the performance measure resulting from a finite variation in the corresponding material properties. It can also provide rigorous upper bounds on the probability of failure using known information about uncertainties and the system, and then conservative safety design and certification can be achieved. This work specifically focuses on AZ31B Mg alloys, and it is assumed that the material is well-characterized by the Johnson–Cook constitutive and failure models, but the model parameters are uncertain. The ordering of uncertainty contributions for model parameters and the corresponding behavior regimes where those parameters play a crucial role are determined. Finally, it is shown that how this ordering provides insight on the improvement of ballistic performance and the development of new material models for Mg alloys.

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“…The ballistic impact of materials and structures is characterized by a very complex mechanicalthermal coupled process which mainly depends on the material properties and geometrical parameters of the target and the projectile, e.g., strength, toughness, shape and size [9,10,11]. These extreme complexities, which involve high non-linearity, singularity and dependence on a large number of parameters, render it impossible to derive a closed-form analytical solution.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty Quantification of Material Properties in Ballistic Impact of Magnesium Alloys

Sun¹

2022

Preprint

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The design and development of cutting-edge light materials for extreme conditions including high-speed impact remains a continuing and significant challenge in spite of steady advances. Magnesium (Mg) and its alloys have gained much attention, due to their high strength-to-weight ratio and potential of further improvements in material properties such as strength and ductility. In this paper, we adopt a recently developed computational framework to quantify the effects of material uncertainties on the ballistic performance of Mg alloys. The framework is able to determine the largest deviation in the performance measure resulting from a finite variation in the corresponding material properties. It can also provide rigorous upper bounds on the probability of failure using known information about uncertainties and the system, and then conservative safety design and certification can be achieved. We specifically focus on AZ31B Mg alloys, and assume that the material is well-characterized by the Johnson-Cook constitutive and failure models, but the model parameters are uncertain. We determine the ordering of uncertainty contributions for model parameters and the corresponding behavior regimes where those parameters play a crucial role. Finally, we show that how this ordering provides insight on the improvement of ballistic performance and the development of new material models for Mg alloys.

show abstract

Ballistic performance study on the composite structures of multi-layered targets subjected to high velocity impact by copper EFP

Cited by 9 publications

References 39 publications

Oblique penetration performance of Explosively Formed Projectile (EFP) on 6061 aluminum target:experiments and simulations

Oblique penetration performance of Explosively Formed Projectile (EFP) on 6061 aluminum target:experiments and simulations

Uncertainty Quantification of Material Properties in Ballistic Impact of Magnesium Alloys

Uncertainty Quantification of Material Properties in Ballistic Impact of Magnesium Alloys

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