Ballistic performance of optimised light weight composite armour
This research paper presents a comprehensive investigation into the response of a 3D finite element model when subjected to 7.62 AP projectiles. The study utilises Hetherington's armour composite equation and incorporates the Johnson-Holmquist material model to analyse the strength and failure...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-08-01
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| Series: | Forces in Mechanics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666359723000513 |
| _version_ | 1797740772449058816 |
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| author | Amar Prakash M. Fasil N. Anandavalli |
| author_facet | Amar Prakash M. Fasil N. Anandavalli |
| author_sort | Amar Prakash |
| collection | DOAJ |
| description | This research paper presents a comprehensive investigation into the response of a 3D finite element model when subjected to 7.62 AP projectiles. The study utilises Hetherington's armour composite equation and incorporates the Johnson-Holmquist material model to analyse the strength and failure criteria of the ceramic and Kevlar/epoxy components, respectively. The results highlight the remarkable resilience of the composite armour, demonstrating its ability to withstand projectile velocities up to 1500 m/s. However, as the ballistic velocity limit increases, the armour experiences significant damage, including projectile erosion and panel delamination. Through numerical simulations and advanced modelling techniques, the paper thoroughly explores the failure modes and energy absorption characteristics of composite armour systems under projectile impact. It investigates key parameters such as velocity, acceleration, kinetic energy, internal energy, pressure distribution, displacement, and damage progression. The analysis reveals a progressive decrease in kinetic energy as the projectile interacts with the armour, underscoring the crucial role of energy absorption in preventing projectile penetration. Moreover, the impact velocity influences the distribution of internal energy within the composite armour, with higher velocities leading to greater energy absorption up to a threshold limit. The study also determines the ballistic limit velocity (V50) using the velocity history approach and validates the findings with existing literature. Overall, the research provides valuable insights into the limitations of composite armour and offers important recommendations for designing and improving materials to achieve superior ballistic protection. It emphasises the significance of reaching the maximum ballistic limit while maintaining a lightweight armour structure by optimising the total armour thickness. This study contributes to the advancement of armour technology and enhances our understanding of the behaviour of composite materials under high-velocity impacts. It offers valuable guidance for the development of more robust armour systems suitable for various defence and protection applications. |
| first_indexed | 2024-03-12T14:17:12Z |
| format | Article |
| id | doaj.art-1dcdd9539bec49f3a2322af838d82e3c |
| institution | Directory Open Access Journal |
| issn | 2666-3597 |
| language | English |
| last_indexed | 2024-03-12T14:17:12Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Forces in Mechanics |
| spelling | doaj.art-1dcdd9539bec49f3a2322af838d82e3c2023-08-20T04:38:45ZengElsevierForces in Mechanics2666-35972023-08-0112100216Ballistic performance of optimised light weight composite armourAmar Prakash0M. Fasil1N. Anandavalli2CSIR-Structural Engineering Research centre, Taramani, Chennai-600113-IndiaCorresponding author.; CSIR-Structural Engineering Research centre, Taramani, Chennai-600113-IndiaCSIR-Structural Engineering Research centre, Taramani, Chennai-600113-IndiaThis research paper presents a comprehensive investigation into the response of a 3D finite element model when subjected to 7.62 AP projectiles. The study utilises Hetherington's armour composite equation and incorporates the Johnson-Holmquist material model to analyse the strength and failure criteria of the ceramic and Kevlar/epoxy components, respectively. The results highlight the remarkable resilience of the composite armour, demonstrating its ability to withstand projectile velocities up to 1500 m/s. However, as the ballistic velocity limit increases, the armour experiences significant damage, including projectile erosion and panel delamination. Through numerical simulations and advanced modelling techniques, the paper thoroughly explores the failure modes and energy absorption characteristics of composite armour systems under projectile impact. It investigates key parameters such as velocity, acceleration, kinetic energy, internal energy, pressure distribution, displacement, and damage progression. The analysis reveals a progressive decrease in kinetic energy as the projectile interacts with the armour, underscoring the crucial role of energy absorption in preventing projectile penetration. Moreover, the impact velocity influences the distribution of internal energy within the composite armour, with higher velocities leading to greater energy absorption up to a threshold limit. The study also determines the ballistic limit velocity (V50) using the velocity history approach and validates the findings with existing literature. Overall, the research provides valuable insights into the limitations of composite armour and offers important recommendations for designing and improving materials to achieve superior ballistic protection. It emphasises the significance of reaching the maximum ballistic limit while maintaining a lightweight armour structure by optimising the total armour thickness. This study contributes to the advancement of armour technology and enhances our understanding of the behaviour of composite materials under high-velocity impacts. It offers valuable guidance for the development of more robust armour systems suitable for various defence and protection applications.http://www.sciencedirect.com/science/article/pii/S2666359723000513ArmourVelocityKinetic energyAccelerationInternal energyForce |
| spellingShingle | Amar Prakash M. Fasil N. Anandavalli Ballistic performance of optimised light weight composite armour Forces in Mechanics Armour Velocity Kinetic energy Acceleration Internal energy Force |
| title | Ballistic performance of optimised light weight composite armour |
| title_full | Ballistic performance of optimised light weight composite armour |
| title_fullStr | Ballistic performance of optimised light weight composite armour |
| title_full_unstemmed | Ballistic performance of optimised light weight composite armour |
| title_short | Ballistic performance of optimised light weight composite armour |
| title_sort | ballistic performance of optimised light weight composite armour |
| topic | Armour Velocity Kinetic energy Acceleration Internal energy Force |
| url | http://www.sciencedirect.com/science/article/pii/S2666359723000513 |
| work_keys_str_mv | AT amarprakash ballisticperformanceofoptimisedlightweightcompositearmour AT mfasil ballisticperformanceofoptimisedlightweightcompositearmour AT nanandavalli ballisticperformanceofoptimisedlightweightcompositearmour |