Geometry, mechanical properties and mounting of perforated plates for ballistic application

Baloš, Sebastian; Grabulov, Vencislav; Šidjanin, Leposava; Pantić, Mladen; Radisavljević, Igor

doi:10.1016/j.matdes.2009.12.031

Cited by 31 publications

(33 citation statements)

References 9 publications

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“…It is not directly seen from the figure that the structural integrity of steel core retained during passing through perforated plate; at least front half of the projectile continued its travel toward the base plate. The projectile fracture into two pieces after the impact on the monolithic perforated plates was also shown previously [7,8,12]. In all shots, the damage locations of the perforated and base plate did not coincide, indicating that yaw induction of the incoming bullet was achieved.…”

Section: à2supporting

confidence: 75%

“…In a recent work, Balos et al [7] shown mass effectiveness of the perforated plates against 12.7 mm M-8 API threat by investigating the effect of geometry, mechanical properties, thickness, obliquity and gap. In the subsequent experimental study conducted by Radisavljevic et al [8] an attempt was made to design an affective perforated plate solution by investigating hole size and ligament length between holes.…”

Section: Introductionmentioning

confidence: 99%

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Ballistic behavior of high hardness perforated armor plates against 7.62mm armor piercing projectile

et al. 2014

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a b s t r a c tIn this paper, some of the important defeating mechanisms of the high hardness perforated plates against 7.62 Â 54 armor piercing ammunition were investigated. The experimental and numerical results identified three defeating mechanisms effective on perforated armor plates which are the asymmetric forces deviates the bullet from its incident trajectory, the bullet core fracture and the bullet core nose erosion. The initial tests were performed on the monolithic armor plates of 9 and 20 mm thickness to verify the fidelity of the simulation and material model parameters. The stochastic nature of the ballistic tests on perforated armor plates was analyzed based on the bullet impact zone with respect to holes. Various scenarios including without and with bullet failure models were further investigated to determine the mechanisms of the bullet failure. The agreement between numerical and experimental results had significantly increased with including the bullet failure criterion and the bullet nose erosion threshold into the simulation. As shown in results, good agreement between Ls-Dyna simulations and experimental data was achieved and the defeating mechanism of perforated plates was clearly demonstrated.

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Section: à2supporting

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Ballistic behavior of high hardness perforated armor plates against 7.62mm armor piercing projectile

et al. 2014

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“…1 and mainly consists of trigger systems for the measurement of the initial and residual velocities of the projectile (1, 2, 3 and 4), a timer connected to the triggers (5), a rigid frame for the target insert (6) and a bullet holder box (7). The targets were clamped at the ends to the target frame as depicted in Fig.…”

Section: Experimental Set-upmentioning

confidence: 99%

“…Segletes [6] investigated the penetration of ductile targets impacted by a hemispherical-nosed tungsten projectile at the erosion-threshold velocity. In another experimental study, the ballistic resistance and damage formation of the heat treated steel targets with different thicknesses, hole diameters and target mounting was investigated [7]. Rusinek et al [8] studied experimentally and numerically the failure of mild steel sheets subjected to normal impact by hemispherical projectiles.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations on the ballistic impact performances of cold rolled sheet metals

et al. 2011

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a b s t r a c tThis study focuses on the ballistic performances of 1 and 2 mm-thick and 2 Â 1 mm-thick cold rolled sheet metal plates against 9 mm standard NATO projectile. The velocity of the projectile before and after perforation, the diameter of the front face deformation, the depth of the crater and the diameter of the hole were measured. The fracture surfaces of the plates near the ballistic limit were also microscopically analyzed. The highest ballistic limit was found in 2 mm-thick plate (332 m s À1 ) and the lowest in 1 mmthick plate (97 m s À1 ). While, the ballistic limit of 2 Â 1 mm-thick plate decreased to 306 m s À1 . Typical failure mechanism of the projectile was the flattening and mushrooming at relatively low velocities and the separation from the jacket at relatively high velocities. In accord with the ballistic limits, 2 mm-thick target plate exhibited the highest hardness value. Microscopic investigations showed the significant reductions in the grain size of the targets after the test.

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“…Workpieces made of WRS are widely used in various wear-exposed structures: excavators, mining and earth-moving machinery, scrap presses, paving moulds, agricultural equipment working in a direct contact with the soil, and others [3][4][5][6][7]. Special attention must be paid when prepared elements are further exposed to heat treatment above the tempering temperature, such as forming of parts of machinery, construction-assembly works etc., because induced structural changes substantially influence mechanical and tribological properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Structural Studies of Welds in Wear-Resistant Steels

et al. 2016

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The work presents results of the research on changes in microstructural, and mechanical properties of the structural XAR 400 wear-resistant steel caused by the welding procedure. Metallographic and microhardness studies revealed complex microstructure of the welds that turned out to vary with the distance from the weld axis: predominance of the acicular ferrite (ACF) structures in the weld itself, quasi-polygonal ferrite (QPF) crystals with precipitates of troostite (T) in the heat-affected zone, and the bainitic ferrite (BF) structures in the heat-partiallyaffected zone.

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Geometry, mechanical properties and mounting of perforated plates for ballistic application

Cited by 31 publications

References 9 publications

Ballistic behavior of high hardness perforated armor plates against 7.62mm armor piercing projectile

Ballistic behavior of high hardness perforated armor plates against 7.62mm armor piercing projectile

Experimental investigations on the ballistic impact performances of cold rolled sheet metals

Structural Studies of Welds in Wear-Resistant Steels

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