Ballistic Performance of Sandwich Composite Armor System

2021 ◽  
Author(s):  
Shah Alam
Keyword(s):  
Sandwich Composite ◽  
Ballistic Performance ◽  
Composite Armor ◽  
Armor System

Ballistic Performance of Sandwich Composite Armor System

2020 ◽  
Author(s):  
Shah Alam ◽  
Samhith Shakar
Keyword(s):  
Impact Resistance ◽  
Absorption Capacity ◽  
Sandwich Composite ◽  
Skin Thickness ◽  
Ballistic Performance ◽  
Backing Plate ◽  
Composite Armor ◽  
Corrugated Structure ◽  
The Impact ◽  
Armor System

Abstract This study focused on the design, modelling and the analysis of the dynamic response of composite armor system, constructed with Kevlar 29 as front skin, Alumina-ceramic filled in x shaped corrugated structure as core and bottom skin Kevlar 29 and T800S, in terms of residual velocity, energy absorption capacity and limiting velocity. The core cell size, height, thickness, skin thickness, etc., will be varied to get their influence on the impact resistance. The design parameter will be investigated for the sandwich composite armor with various configurations and stacking sequence of Alumina Ceramics, Kevlar 29 and T800S. The sandwich typically consists of front plate, core and backing plate, which will be impacted at different velocities starting at 100m/s till significant armor penetration. The ballistic limit velocity (V50) will be determined from the analysis. The non-linear explicit dynamic analysis and simulation results computed using the software ABAQUS will be validated by experiment. From the data obtained it can be suggested which composite armor has improved impact resistance and performance.

Impact Analysis of a Composite Armor System

2019 ◽  
Author(s):  
Shah Alam ◽  
Mohammad Nazmus Saquib
Keyword(s):  
Impact Analysis ◽  
Absorption Capacity ◽  
Fiber Reinforced Polymers ◽  
Sandwich Composite ◽  
Design Parameters ◽  
Reinforced Polymers ◽  
S 100 ◽  
Composite Armor ◽  
Explicit Dynamic ◽  
Armor System

Abstract Present day demands composite material with even lighter weight and higher strength for using in aerospace, automobile and defense industries. Due to posing significantly weight saving and higher stiffness attribute, use of sandwich composite structure is the demand of the time. Impact analysis of sandwich composite armor system is necessary to design and develop new armor for defense sectors. The goal of this study is to design, model and analyze the dynamic response of the composite armor system in terms of residual velocity and energy absorption capacity. The design parameters are investigated for different fiber reinforced polymers (High tensile strength Carbon/epoxy, Carbon Fiber/Carbon Nanotube reinforced polymers) as top and bottom skin, with an Aluminum Alloy 7039 corrugated core structure and square prismoid assembled Ceramic (SiC) core centerpieces at different velocities (50 m/s, 100 m/s, 200 m/s, 400 m/s). This non-linear explicit dynamic study is performed using commercial software ABAQUS CAE 2017. Best combination for the composite armor system is suggested based on the results.

Effect of Al alloy back panel on the dynamic penetration and damage characteristics of ceramic composite armors

2019 ◽  
Vol 9 (7) ◽  
pp. 723-731
Author(s):  
Weilan Liu ◽  
Zhou Chen ◽  
Tengzhou Xu ◽  
Junfeng Hu ◽  
Jiaduo Li
Keyword(s):  
Ceramic Composite ◽  
Composite Layer ◽  
Al Alloy ◽  
Ballistic Performance ◽  
Damage Characteristics ◽  
Composite Armor ◽  
Back Panel ◽  
Dynamic Penetration ◽  
Ceramic Composite Armor ◽  
Hybrid Ceramic

This paper mainly focuses on the investigation of dynamic penetration and damage characteristics of a hybrid ceramic composite armor normally impacted by 12.7 mm armor piercing incendiary projectiles. The hybrid ceramic composite armor was composed of a ceramic cylinder layer, a Ti–6Al–4V plate, an ultrahigh molecular weight polyethylene (UHMWPE) composite layer, and an Al alloy panel. Three different areal densities of composite laminates with 82, 87, and 92 kg/m2 were tested. 3D finite element model of the ceramic composite armor was generated in ABAQUS, and the simulation results were employed to study the damage evolution. The effect of alumina ceramic cylinders layer on the ballistic performance and the failure mechanisms of Ti–6Al–4V and UHMWPE after ballistic impact were examined by experimental and simulative results. According to the numerical and analytical models, an optimal thickness range of Al alloy back panel was found in minimizing areal density of the ceramic composite armor.

Crack Evolution from Ballistic Threats in Laminated Glass

2014 ◽  
Vol 608 ◽  
pp. 316-321
Author(s):  
Chidchanok Chaichuenchob ◽  
Pavadee Aungkavattana ◽  
Sujarinee Kochawattana
Keyword(s):  
Laminated Glass ◽  
Crack Evolution ◽  
Ballistic Performance ◽  
Cross Sectional ◽  
Typical Structure ◽  
Transparent Armor ◽  
Water Jet Cutting ◽  
Level 3 ◽  
Radial Cracks ◽  
Armor System

Laminated glass is widely used as safety material and transparent armor. Its typical structure is sandwich layers of glass sheets and Poly Vinyl Butyral (PVB) film. It is known that the ballistic performance of the laminated glass is highly influenced by its configuration. In this study, the damages from ballistic threats at level 3 according to NIJ standard in laminated glass were investigated. Laminated glass with various configurations was fabricated using rolling and vacuum techniques. The ballistic tests were performed and the resulting radial cracks, which intercept several circumferences on each sheet of glass, were quantified. It was found that the number of crack bifurcation and the configurations of laminated glass were significantly correlated. The tested specimens were also cross-sectional observed using water jet cutting machine so that, their ballistic penetration could be determined. The analysis results provide better understanding of crack evolution, leading to improved new transparent armor system.

A new approach for improving ballistic performance of composite armor

1999 ◽  
Vol 39 (2) ◽  
pp. 103-110 ◽  
Author(s):  
V. Parameswaran ◽  
W. Bentley ◽  
A. Shukla ◽  
R. A. Prosser
Keyword(s):  
Ballistic Performance ◽  
New Approach ◽  
Composite Armor

scholarly journals Ballistic Performance of a Composite Metal Foam-ceramic Armor System

2014 ◽  
Vol 4 ◽  
pp. 151-156 ◽  
Author(s):  
Matias Garcia-Avila ◽  
Marc Portanova ◽  
Afsaneh Rabiei
Keyword(s):  
Metal Foam ◽  
Ballistic Performance ◽  
Foam Ceramic ◽  
Armor System

scholarly journals Preparation and Impact Resistance Properties of Hybrid Silicone-Ceramics Composites

2020 ◽  
Vol 10 (24) ◽  
pp. 9098
Author(s):  
Katarzyna Kośla ◽  
Paweł Kubiak ◽  
Marzena Fejdyś ◽  
Karolina Olszewska ◽  
Marcin Łandwijt ◽  
...  
Keyword(s):  
Impact Resistance ◽  
Young Modulus ◽  
Drop Tower ◽  
Body Armor ◽  
Soft Body ◽  
Ballistic Performance ◽  
Composite Armor ◽  
New Type ◽  
The Impact ◽  
Soft Body Armor

This article presents the method of preparation a new type of ballistic armor based on hybrid silicone-ceramic (HSC) composites with considerable flexibility. An experimental study on the ballistic behavior of HSC composites connected with soft body armor is presented against FSP.22 fragments. The effect of Al2O3 ceramics on the ballistic performance of HSC composite was investigated, and the fragmentation resistance process of the composite armor combining the HSC composite and soft aramid insert is clarified. Furthermore, impact resistance tests made with a drop tower which allows for a gravity drop of a mass along vertical guides onto a sample placed with an energy of 5 J were performed. The results presented in this paper show that the HSC composites can be successfully used as a hard body armor. However, they do not exhibit the properties of absorbing the impact energy generated during the drop tower tests. The test results show that the ballistic performance of composite armors is influenced by the hardness and Young modulus of ceramics and soft body armor panel. Additionally, in the article, the results of mechanical properties of silicones used for preparation of composites were presented and compiled to determine their role in the performance of impact protection.

Ballistic performance of powder metal Al5Cu-B4C composite as monolithic and laminated armor

2021 ◽  
Vol 63 (6) ◽  
pp. 512-518
Author(s):  
Mehmet Ayvaz ◽  
Hakan Cetinel
Keyword(s):  
Laminated Composite ◽  
Liquid Phase Sintering ◽  
Powder Metallurgy Method ◽  
Metal Composite ◽  
Ceramic Plate ◽  
Pressing Pressure ◽  
Powder Metal ◽  
Ballistic Performance ◽  
Composite Armor ◽  
Ballistic Tests

Abstract In this study, ballistic performances of x wt.-% B4C (x = 5, 10, and 20) reinforced Al5Cu matrix composite samples were investigated as a monolithic and laminated composite armor component. Composite armor plates were produced by the powder metallurgy method. The prepared powders were pressed under 400 MPa pressing pressure. Green compacts were pre-sintered at 400 °C for 30 minutes in order to blow the lubricant. Subsequently, liquid phase sintering was performed at 610 °C for 210 minutes. In ballistic tests, 7.62 mm caliber armor-piercing bullets were used as the ballistic threat. In the ballistic tests of monolithic armors, only 10 mm thick powder metal composite plates were tested. In the ballistic tests of laminated composite armors, these powdered metal plates were layered with 10 mm thick alumina ceramic plate front layers and 10 mm thick AA5083 plates. Although all of the monolithic powder metal composite armors were penetrated, they showed multi-hit capability. All of the laminated composite armors provided full ballistic protection. It was determined that with the increase in B4C reinforcement rate, the ballistic resistance also increased due to the improvement in strength, hardness, and abrasive feature.

scholarly journals Composites with Natural Fibers and Conventional Materials Applied in a Hard Armor: A Comparison

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1920 ◽  
Author(s):  
Fernanda Santos da Luz ◽  
Fabio da Costa Garcia Filho ◽  
Michelle Souza Oliveira ◽  
Lucio Fabio Cassiano Nascimento ◽  
Sergio Neves Monteiro
Keyword(s):  
Natural Fiber ◽  
Epoxy Composite ◽  
Natural Fibers ◽  
Ballistic Performance ◽  
Synthetic Fibers ◽  
Reinforced Polymer ◽  
Fiber Reinforced Polymer Composites ◽  
National Institute Of Justice ◽  
Additional Protection ◽  
Armor System

Natural-fiber-reinforced polymer composites have recently drawn attention as new materials for ballistic armor due to sustainability benefits and lower cost as compared to conventional synthetic fibers, such as aramid and ultra-high-molecular-weight polyethylene (UHMWPE). In the present work, a comparison was carried out between the ballistic performance of UHMWPE composite, commercially known as Dyneema, and epoxy composite reinforced with 30 vol % natural fibers extracted from pineapple leaves (PALF) in a hard armor system. This hard armor system aims to provide additional protection to conventional level IIIA ballistic armor vests, made with Kevlar, by introducing the PALF composite plate, effectively changing the ballistic armor into level III. This level of protection allows the ballistic armor to be safely subjected to higher impact projectiles, such as 7.62 mm caliber rifle ammunition. The results indicate that a hard armor with a ceramic front followed by the PALF/epoxy composite meets the National Institute of Justice (NIJ) international standard for level III protection and performs comparably to that of the Dyneema plate, commonly used in armor vests.

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