The development and ballistic performance of protective steel-concrete composite barriers against hypervelocity impacts by explosively formed projectiles

Remennikov, Alexander; Gan, Edward Chern Jinn; Ngo, Tuan; Netherton, Michael D.

doi:10.1016/j.compstruct.2018.09.060

Cited by 21 publications

(6 citation statements)

References 10 publications

(14 reference statements)

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“…where ρ 1w is the density of the outer explosive column at the equilibrium moment. According to Equation (7), when the detonation product of the outer explosive column expands to r = 50.97 mm, it reaches the state of Equation ( 6). The expansion limit of the cylindrical charge shell is 1.8 times the initial radius [10].…”

Section: Explosion Pressure-coupling Constraint Principle and Action ...mentioning

confidence: 99%

“…The traditional single-cone, double-cone, horn-shaped liners, and hemispherical and spherical missing body liners are common structures, and a shaper is used to adjust the detonation waveform [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ]. Small cone-shaped charge liners form a jet, large cone angle and hemispherical shapes form rod jets, and spherical missing body shaped charge liners form explosive-formed projectiles (EFP) [ 5 , 6 , 7 , 8 ]. The velocity and structure of jet are restricted by the material properties, charge structure, and liner shape [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…It has become an important anti-armor weapon [1]. The traditional single-cone, double-cone, horn-shaped liners, and hemispherical and spherical missing body liners are common structures, and a shaper is used to adjust the detonation waveform [2][3][4][5][6][7][8][9][10]. Small cone-shaped charge liners form a jet, large cone angle and hemispherical shapes form rod jets, and spherical missing body shaped charge liners form explosive-formed projectiles (EFP) [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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Study on Forming Law and Penetration of a Spherical Cone Composite Structure Liner Based on the Explosion Pressure-Coupling Constraint Principle

Han¹,

Chen³

et al. 2022

Materials

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The liner is an important part of shaped charge. In this paper, the spherical cone composite structure liner composed of a spherical missing body and truncated cone (hereinafter referred to as the SCS liner) is studied. The SCS liner is made of copper. Based on this, a shaped charge structure based on the explosion pressure-coupling constraint principle is designed, filling an 8701 explosive (RDX-based explosive). Through pulse X-ray tests, numerical simulation, and static explosion tests, the significance of the detonation pressure-coupling constraint principle, as well as the forming law and penetration efficiency of the SCS liner are studied. The results show that in the pulsed X-ray test, a split jet with high velocity is formed in the SCS liner. The explosion pressure-coupling constraint principle delays the attenuation of the internal explosion pressure and improves the shape of jet. After the SCS liner is selected, the penetration depth is increased by 70.38%. The average head velocity of the explosive charge jet is 7594.81 m/s. The diameter of the hole formed by the jet of the explosive charge is 20.33 mm. The hole expands inside, and the perforation depth is 178.87 mm. The numerical simulation is in good agreement with the test.

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Section: Explosion Pressure-coupling Constraint Principle and Action ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study on Forming Law and Penetration of a Spherical Cone Composite Structure Liner Based on the Explosion Pressure-Coupling Constraint Principle

Han¹,

Chen³

et al. 2022

Materials

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“…Coupling of steel with ceramics for structural applications against projectile impact has been considered by Ni et al [26] through both numerical and experimental investigation of ballistic performance of hybrid sandwich system consisting of stainless steel as facesheets and metallic truss core filled with ceramic prism. Protection of steel/concrete composite structure against hyper velocity projectiles has been investigated by [27]. Publication trend on steel/ polymer-based sandwich structures between 2010 to current and still counting from science direct source is illustrated in figure 1.…”

Section: Steel Based Sandwich Structuresmentioning

confidence: 99%

An overview on penetration mechanism and optimization techniques of steel sandwich structure under ballistic testing

Ebo-Quansah

Hassanin

Adachi

et al. 2022

International Journal of Materials Technology and Innovation

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This review reports on the current trends in steel-based sandwich structures subjected under high velocity impact. The review begins with a brief introduction on sandwich structures in general. It then delves into detail on some structural configuration parameters that affect sandwich performance. Light has been thrown on the energy absorption mechanisms of sandwich panels. The current global demand on energy necessitates the design of lightweight structures. Therefore, the review also elucidates on sandwich design optimization techniques mostly employed by researchers in meeting design constraints and objectives at the minimum weight and cost. Among these optimization techniques are the artificial neural network, fuzzy logic, Taguchi based method, response surface method, particle swarm optimization, genetic algorithm among others. The promising potential of auxetic materials with their negative Poisson's ratio in resisting impact penetration has been discussed. A comprehensive explanation on failure mechanisms that are encountered during projectile penetration has also been elaborated upon. Parameters such as projectile geometry, core design, core material and thickness of facesheets noted to have enormous influence on penetration resistance have also been addressed.

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“…The impermeable steel plate is used as formwork and protection for the concrete core, 1–3 which has good buckling resistance. Therefore, SCS sandwich panels are often used in ice-resistant walls, 4 air-raid shelter 5,6 and nuclear facilities 7–9 to resist structural deformation. Previous researches 10,11 have shown that shear brittle failure may occur when the shear span ratio is less than 2.0 or bond-slip occurs.…”

Section: Introductionmentioning

confidence: 99%

Deflection assessment of prestressed steel-concrete–steel sandwich panel: experiment and numerical simulation

Meng

Wang

Chen

et al. 2022

Jnl of Sandwich Structures & Materials

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A steel-concrete-steel sandwich panel with prestressed reinforcement was developed, named prestressed steel-concrete–steel sandwich panel. Nine specimens where the loading mode, top steel plate thickness, spacing of connectors and prestressed reinforcement arrangement were varied were experimentally tested to explore the failure mode, ultimate strength, ductility and deflection of the structure. The results show that prestressing enhanced the ultimate strength and ductility of the structure. Finite element analysis predictions were consistent with test results in terms of crack characteristics, load-displacement curve and ultimate strength. Deflection prediction analysis of the prestressed panels was also developed based on variational theory which provided good agreement with the finite element results.

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The development and ballistic performance of protective steel-concrete composite barriers against hypervelocity impacts by explosively formed projectiles

Cited by 21 publications

References 10 publications

Study on Forming Law and Penetration of a Spherical Cone Composite Structure Liner Based on the Explosion Pressure-Coupling Constraint Principle

Study on Forming Law and Penetration of a Spherical Cone Composite Structure Liner Based on the Explosion Pressure-Coupling Constraint Principle

An overview on penetration mechanism and optimization techniques of steel sandwich structure under ballistic testing

Deflection assessment of prestressed steel-concrete–steel sandwich panel: experiment and numerical simulation

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