Study of Hypervelocity Projectile Impact on Thick Metal Plates
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 straigh...
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Hindawi Limited
2016-01-01
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Series: | Shock and Vibration |
Online Access: | http://dx.doi.org/10.1155/2016/4313480 |
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doaj-f49bc25ca42b443b846aaac8dbfde8e82020-11-24T21:47:08ZengHindawi LimitedShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/43134804313480Study of Hypervelocity Projectile Impact on Thick Metal PlatesShawoon K. Roy0Mohamed Trabia1Brendan O’Toole2Robert Hixson3Steven Becker4Michael Pena5Richard Jennings6Deepak Somasoundaram7Melissa Matthes8Edward Daykin9Eric Machorro10Department of Mechanical Engineering, University of Nevada, Las Vegas, NV 89154, USADepartment of Mechanical Engineering, University of Nevada, Las Vegas, NV 89154, USADepartment of Mechanical Engineering, University of Nevada, Las Vegas, NV 89154, USANational Security Technologies, LLC, Las Vegas, NV 89030, USANational Security Technologies, LLC, Las Vegas, NV 89030, USANational Security Technologies, LLC, Las Vegas, NV 89030, USADepartment of Mechanical Engineering, University of Nevada, Las Vegas, NV 89154, USADepartment of Mechanical Engineering, University of Nevada, Las Vegas, NV 89154, USADepartment of Mechanical Engineering, University of Nevada, Las Vegas, NV 89154, USANational Security Technologies, LLC, Las Vegas, NV 89030, USANational Security Technologies, LLC, Las Vegas, NV 89030, USAHypervelocity 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.http://dx.doi.org/10.1155/2016/4313480 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shawoon K. Roy Mohamed Trabia Brendan O’Toole Robert Hixson Steven Becker Michael Pena Richard Jennings Deepak Somasoundaram Melissa Matthes Edward Daykin Eric Machorro |
spellingShingle |
Shawoon K. Roy Mohamed Trabia Brendan O’Toole Robert Hixson Steven Becker Michael Pena Richard Jennings Deepak Somasoundaram Melissa Matthes Edward Daykin Eric Machorro Study of Hypervelocity Projectile Impact on Thick Metal Plates Shock and Vibration |
author_facet |
Shawoon K. Roy Mohamed Trabia Brendan O’Toole Robert Hixson Steven Becker Michael Pena Richard Jennings Deepak Somasoundaram Melissa Matthes Edward Daykin Eric Machorro |
author_sort |
Shawoon K. Roy |
title |
Study of Hypervelocity Projectile Impact on Thick Metal Plates |
title_short |
Study of Hypervelocity Projectile Impact on Thick Metal Plates |
title_full |
Study of Hypervelocity Projectile Impact on Thick Metal Plates |
title_fullStr |
Study of Hypervelocity Projectile Impact on Thick Metal Plates |
title_full_unstemmed |
Study of Hypervelocity Projectile Impact on Thick Metal Plates |
title_sort |
study of hypervelocity projectile impact on thick metal plates |
publisher |
Hindawi Limited |
series |
Shock and Vibration |
issn |
1070-9622 1875-9203 |
publishDate |
2016-01-01 |
description |
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. |
url |
http://dx.doi.org/10.1155/2016/4313480 |
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