Simulation on Ballistic Performance of Ceramic/Metal Composite Armor

2012 ◽  
Vol 581-582 ◽  
pp. 759-763
Author(s):  
Yu Jia ◽  
Fei Xiang He ◽  
Li Ping Shi ◽  
Xin Tao Wang
Keyword(s):  
Metal Composite ◽  
Ballistic Performance ◽  
Residual Velocity ◽  
Damage Area ◽  
Composite Armor

In this paper, we will simulation three different structures of the ceramic/metal armor by ansys Ls-dyna, under the condition of the same thickness ceramic. In the paper, every structure was impacted with the flat-ended ballistic with 600m/s velocity. Through calculation we find that the case2 and case3 has the nearly equal residual velocity, lower than the case1, so the case2 and case3 are superior to the case1, but case3 has the smallest damage area, so that the case3 has the most excellent ballistic performance, especially on the performace of multi-hit.

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.

Study on the Ballistic Performance of Ceramic Composite Armor with Different Adhesive

2010 ◽  
Vol 139-141 ◽  
pp. 308-313 ◽  
Author(s):  
Ju Bin Gao ◽  
Yang Wei Wang ◽  
Ling Yu Zhang ◽  
Guo Feng Han ◽  
Fu Chi Wang
Keyword(s):  
Mechanical Properties ◽  
Acoustic Impedance ◽  
Ceramic Composite ◽  
Metal Composite ◽  
Ballistic Performance ◽  
Nano Sio2 ◽  
Composite Armor ◽  
Ballistic Test ◽  
Ceramic Composite Armor

Adhesive is an important part of ceramic-metal composite armor. In order to obtain excellent ballistic performance, some adhesive with a variety of content of nano-SiO2 was prepared, and mechanical properties and ballistic test were conducted. The results show that the pores in adhesive decrease the strength of the adhesive, and the fracture happens along with the pores. To add nano-SiO2 in adhesive can decrease the porosity and the scale of the pores. In the ballistic performance, the adhesive enhance the acoustic impedance, the greater acoustic impedance can increase the energy of transmission wave and decrease the energy of reflection wave, leading to that the ceramic is destroyed slightly. The targets with adhesive added in 20% nano-SiO2 express the best anti-bullet properties. There are so many big blocks left in targets and the height of back convex is only 2.36mm.

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.

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 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.

scholarly journals Damage Characteristics of PELE Projectile with Gradient Density Inner Core Material

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2389 ◽  
Author(s):  
Liangliang Ding ◽  
Jingyuan Zhou ◽  
Wenhui Tang ◽  
Xianwen Ran ◽  
Ye Cheng
Keyword(s):  
Conversion Rate ◽  
Inner Core ◽  
Core Material ◽  
Residual Velocity ◽  
Damage Area ◽  
Damage Characteristics ◽  
Penetration Ability ◽  
Gradient Type ◽  
Radial Scattering ◽  
Negative Gradient

The PELE (penetration with enhanced lateral efficiency) projectile is a new type of safe ammunition which can form a large number of fragments after perforating the target, and does not depend on any pyrotechnics. The damage characteristics of PELE projectile mainly include the penetration ability and fragmentation effect. There are many factors affecting the damage characteristics of PELE projectile, and this paper attempts to study the damage characteristics of PELE projectile, from the point of view of changing the single core material. Therefore, four different inner core combination types were designed in this paper, namely, zero gradient—I type (PE), zero gradient—II type (Al), positive gradient type (PE + Al), and negative gradient type (Al + PE). With the help of a more mature numerical simulation method, the studies were carried out from several aspects, such as the axial residual velocity of projectile, the radial scattering velocity of fragments, the radial scattering radius of fragments, and the residual length of projectile. The axial residual velocity of projectile can characterize the penetration ability of projectile, the radial scattering velocity and radial scattering radius of fragments can predict the damage area of fragments, and the residual length of projectile can reflect the fragment conversion rate of casing. The results indicate that the negative gradient inner core combination is superior to the other three combinations in terms of the penetration ability and fragmentation effect. Under the same impact velocity, the maximum radial velocity and radial scattering radius of fragments mainly depend on the front inner core material, and these two parameters will increase appropriately with the increase of the strength of front inner core material. Similarly, the residual length of projectile can be reduced, or the fragment conversion rate can be enhanced, by properly reducing the strength of rear inner core material. The conclusions obtained in this paper can provide a reference for engineering applications.

scholarly journals Effects of the adhesive layer on the multi-hit ballistic performance of ceramic/metal composite armors

2021 ◽  
Author(s):  
Yonghua Shen ◽  
Yangwei Wang ◽  
Shaofeng Du ◽  
Zhikun Yang ◽  
Huanwu Cheng ◽  
...  
Keyword(s):  
Adhesive Layer ◽  
Metal Composite ◽  
Ballistic Performance

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.

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