Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor
The high hardness and strength of technical ceramics is exploited to design ballistic armors and their low toughness, brittleness is overcome by joining them with a metallic or long fiber reinforced composite backing plate. The thickness of backing plate (BP) on the ballistic performance SiC ceramic...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2018
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| Online Access: | https://hdl.handle.net/10356/88208 http://hdl.handle.net/10220/44562 |
| _version_ | 1826114639483633664 |
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| author | Gour, Govind Serjouei, Ahmad Sridhar, Idapalapati |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Gour, Govind Serjouei, Ahmad Sridhar, Idapalapati |
| author_sort | Gour, Govind |
| collection | NTU |
| description | The high hardness and strength of technical ceramics is exploited to design ballistic armors and their low toughness, brittleness is overcome by joining them with a metallic or long fiber reinforced composite backing plate. The thickness of backing plate (BP) on the ballistic performance SiC ceramic armor is studied through finite element simulations based on AUTODYN®. In this work, depth of penetration (DOP) from experimental measurements is compared with simulations using explicit software AUTODYN® for 3D modelling. The ballistic performance of three layer armor (cover plate (CP), ceramic tile and backing plate (BP)) under normal and oblique (NATO 60°) for long rod projectile (LRP) with a conical tip is investigated. The LRP and CP have been modelled using smooth particle hydrodynamic (SPH) particles and rest of the component is modelled using lagrangian processor. The Johnson-Cook and Johnson-Holmquist (JH-2) constitutive models are used for metal and ceramic materials, respectively. It is found that thicker BP enhances SiC armor via supporting longer period and prevent any premature failure at the rear surface of ceramic. It is also noticed that high hardness (low ductile) BP improves the ballistic performance of ceramic armor through offsetting tension of ceramic. |
| first_indexed | 2024-10-01T03:42:45Z |
| format | Journal Article |
| id | ntu-10356/88208 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:42:45Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/882082023-03-04T17:16:20Z Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor Gour, Govind Serjouei, Ahmad Sridhar, Idapalapati School of Mechanical and Aerospace Engineering Ceramic Armor Interface Defeat The high hardness and strength of technical ceramics is exploited to design ballistic armors and their low toughness, brittleness is overcome by joining them with a metallic or long fiber reinforced composite backing plate. The thickness of backing plate (BP) on the ballistic performance SiC ceramic armor is studied through finite element simulations based on AUTODYN®. In this work, depth of penetration (DOP) from experimental measurements is compared with simulations using explicit software AUTODYN® for 3D modelling. The ballistic performance of three layer armor (cover plate (CP), ceramic tile and backing plate (BP)) under normal and oblique (NATO 60°) for long rod projectile (LRP) with a conical tip is investigated. The LRP and CP have been modelled using smooth particle hydrodynamic (SPH) particles and rest of the component is modelled using lagrangian processor. The Johnson-Cook and Johnson-Holmquist (JH-2) constitutive models are used for metal and ceramic materials, respectively. It is found that thicker BP enhances SiC armor via supporting longer period and prevent any premature failure at the rear surface of ceramic. It is also noticed that high hardness (low ductile) BP improves the ballistic performance of ceramic armor through offsetting tension of ceramic. Published version 2018-03-15T07:09:25Z 2019-12-06T16:58:19Z 2018-03-15T07:09:25Z 2019-12-06T16:58:19Z 2017 Journal Article Gour, G., Serjouei, A., & Sridhar, I. (2017). Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor. Procedia Engineering, 173, 93-100. 1877-7058 https://hdl.handle.net/10356/88208 http://hdl.handle.net/10220/44562 10.1016/j.proeng.2016.12.040 en Procedia Engineering © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the organizing committee of Implast 2016 8 p. application/pdf |
| spellingShingle | Ceramic Armor Interface Defeat Gour, Govind Serjouei, Ahmad Sridhar, Idapalapati Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor |
| title | Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor |
| title_full | Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor |
| title_fullStr | Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor |
| title_full_unstemmed | Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor |
| title_short | Influence of Geometry and Hardness of the Backing Plate on Ballistic Performance of Bi-Layer Ceramic Armor |
| title_sort | influence of geometry and hardness of the backing plate on ballistic performance of bi layer ceramic armor |
| topic | Ceramic Armor Interface Defeat |
| url | https://hdl.handle.net/10356/88208 http://hdl.handle.net/10220/44562 |
| work_keys_str_mv | AT gourgovind influenceofgeometryandhardnessofthebackingplateonballisticperformanceofbilayerceramicarmor AT serjoueiahmad influenceofgeometryandhardnessofthebackingplateonballisticperformanceofbilayerceramicarmor AT sridharidapalapati influenceofgeometryandhardnessofthebackingplateonballisticperformanceofbilayerceramicarmor |