Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles
In the case of protection of transportation systems, the optimization of the shield is of practical interest to reduce the weight of such components and thus increase the payload or reduce the fuel consumption. As far as metal shields are concerned, some investigations based on numerical simulations...
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MDPI AG
2021-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/3/626 |
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| author | Riccardo Scazzosi Marco Giglio Andrea Manes |
| author_facet | Riccardo Scazzosi Marco Giglio Andrea Manes |
| author_sort | Riccardo Scazzosi |
| collection | DOAJ |
| description | In the case of protection of transportation systems, the optimization of the shield is of practical interest to reduce the weight of such components and thus increase the payload or reduce the fuel consumption. As far as metal shields are concerned, some investigations based on numerical simulations showed that a multi-layered configuration made of layers of different metals could be a promising solution to reduce the weight of the shield. However, only a few experimental studies on this subject are available. The aim of this study is therefore to discuss whether or not a monolithic shield can be substituted by a double-layered configuration manufactured from two different metals and if such a configuration can guarantee the same perforation resistance at a lower weight. In order to answer this question, the performance of a ballistic shield constituted of a layer of high-strength steel and a layer of an aluminum alloy impacted by an armor piercing projectile was investigated in experimental tests. Furthermore, an axisymmetric finite element model was developed. The effect of the strain rate hardening parameter C and the thermal softening parameter m of the Johnson–Cook constitutive model was investigated. The numerical model was used to understand the perforation process and the energy dissipation mechanism inside the target. It was found that if the high-strength steel plate is used as a front layer, the specific ballistic energy increases by 54% with respect to the monolithic high-strength steel plate. On the other hand, the specific ballistic energy decreases if the aluminum plate is used as the front layer. |
| first_indexed | 2024-03-09T03:17:44Z |
| format | Article |
| id | doaj.art-366d3e77753445a1aaca70b65307948d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T03:17:44Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-366d3e77753445a1aaca70b65307948d2023-12-03T15:15:35ZengMDPI AGMaterials1996-19442021-01-0114362610.3390/ma14030626Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing ProjectilesRiccardo Scazzosi0Marco Giglio1Andrea Manes2Politecnico di Milano, Department of Mechanical Engineering, via la Masa, 1, 20156 Milan, ItalyPolitecnico di Milano, Department of Mechanical Engineering, via la Masa, 1, 20156 Milan, ItalyPolitecnico di Milano, Department of Mechanical Engineering, via la Masa, 1, 20156 Milan, ItalyIn the case of protection of transportation systems, the optimization of the shield is of practical interest to reduce the weight of such components and thus increase the payload or reduce the fuel consumption. As far as metal shields are concerned, some investigations based on numerical simulations showed that a multi-layered configuration made of layers of different metals could be a promising solution to reduce the weight of the shield. However, only a few experimental studies on this subject are available. The aim of this study is therefore to discuss whether or not a monolithic shield can be substituted by a double-layered configuration manufactured from two different metals and if such a configuration can guarantee the same perforation resistance at a lower weight. In order to answer this question, the performance of a ballistic shield constituted of a layer of high-strength steel and a layer of an aluminum alloy impacted by an armor piercing projectile was investigated in experimental tests. Furthermore, an axisymmetric finite element model was developed. The effect of the strain rate hardening parameter C and the thermal softening parameter m of the Johnson–Cook constitutive model was investigated. The numerical model was used to understand the perforation process and the energy dissipation mechanism inside the target. It was found that if the high-strength steel plate is used as a front layer, the specific ballistic energy increases by 54% with respect to the monolithic high-strength steel plate. On the other hand, the specific ballistic energy decreases if the aluminum plate is used as the front layer.https://www.mdpi.com/1996-1944/14/3/626terminal ballisticshigh-velocity impactaluminumhigh-strength steeldouble-layerexperimental tests |
| spellingShingle | Riccardo Scazzosi Marco Giglio Andrea Manes Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles Materials terminal ballistics high-velocity impact aluminum high-strength steel double-layer experimental tests |
| title | Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles |
| title_full | Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles |
| title_fullStr | Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles |
| title_full_unstemmed | Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles |
| title_short | Experimental and Numerical Investigation on the Perforation Resistance of Double-Layered Metal Shield under High-Velocity Impact of Armor-Piercing Projectiles |
| title_sort | experimental and numerical investigation on the perforation resistance of double layered metal shield under high velocity impact of armor piercing projectiles |
| topic | terminal ballistics high-velocity impact aluminum high-strength steel double-layer experimental tests |
| url | https://www.mdpi.com/1996-1944/14/3/626 |
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