Perforation of plates through high-velogity impact

Merzhievskii, L. A.; Титов, В.М.

doi:10.1007/bf00854086

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…In previous research, the perforation and deformation of thin steel plates at a velocity range of 3-9 km/s were studied and an analytical method was presented to relate debris particles to impact velocity [3]. A study of hypervelocity impact damage on martensitic steel armor highlighted the importance of better understanding spall damage and pressure-induced phase transitions [4].…”

Section: Introductionmentioning

confidence: 99%

Modeling Plastic Deformation of Steel Plates in Hypervelocity Impact Experiments

O’Toole

Trabia

Hixson

et al. 2015

Procedia Engineering

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Hypervelocity impact experiments were done with a two-stage light gas gun to study the plastic deformation of metallic plates. Cylindrical Lexan projectiles were fired at A36 steel target plates with a velocity range of 4.5-6.0 km/s. Experiments were designed to produce a front side impact crater and a permanent bulging deformation on the back surface of the target while preventing complete perforation. Free surface velocities from the back surface of target plate were acquired using the newly developed Multiplexed Photonic Doppler Velocimetry (MPDV) system. Two different computational techniques were developed to simulate this type of experiment: Lagrangian-based smooth particle hydrodynamics (SPH) in LS-DYNA and the Eulerianbased hydrocode CTH. Parameters for material models including equation of state, compressive strength, and spall model were selected to obtain highest fidelity numerical results to compare with experiment.

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Section: Introductionmentioning

confidence: 99%

Modeling Plastic Deformation of Steel Plates in Hypervelocity Impact Experiments

O’Toole

Trabia

Hixson

et al. 2015

Procedia Engineering

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show abstract

“…Merzhievskii and Titov [14] evaluated the perforation and deformation of thin steel plates at velocities from 3 to 9 km/s; they developed an analytical method to relate debris particles to the impact velocity. The ballistic limits of aluminum plates of various thicknesses were studied by Børvik et al [15] using a compressed-air gas gun.…”

Section: Introductionmentioning

confidence: 99%

Study of Hypervelocity Projectile Impact on Thick Metal Plates

Roy

Trabia

O’Toole

et al. 2016

Shock and Vibration

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Hypervelocity impacts generate extreme pressure and shock waves in impacted targets that undergo severe localized deformation within a few microseconds. These impact experiments pose unique challenges in terms of obtaining accurate measurements. Similarly, simulating these experiments is not straightforward. This study proposed an approach to experimentally measure the velocity of the back surface of an A36 steel plate impacted by a projectile. All experiments used a combination of a two-stage light-gas gun and the photonic Doppler velocimetry (PDV) technique. The experimental data were used to benchmark and verify computational studies. Two different finite-element methods were used to simulate the experiments: Lagrangian-based smooth particle hydrodynamics (SPH) and Eulerian-based hydrocode. Both codes used the Johnson-Cook material model and the Mie-Grüneisen equation of state. Experiments and simulations were compared based on the physical damage area and the back surface velocity. The results of this study showed that the proposed simulation approaches could be used to reduce the need for expensive experiments.

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Shield properties of a thin plate under high-velocity impact

Merzhievskii

Титов

1977

J Appl Mech Tech Phys

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Perforation of plates through high-velogity impact

Cited by 6 publications

References 2 publications

Modeling Plastic Deformation of Steel Plates in Hypervelocity Impact Experiments

Modeling Plastic Deformation of Steel Plates in Hypervelocity Impact Experiments

Study of Hypervelocity Projectile Impact on Thick Metal Plates

Shield properties of a thin plate under high-velocity impact

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