scholarly journals Correction to: Experimental and Numerical Study of Ballistic Resistance of Composites Based on Sandwich Metallic Foams

2021 ◽  
Author(s):  
Anna Dmitruk ◽  
Krzysztof Naplocha ◽  
Joanna Pach ◽  
Dariusz Pyka ◽  
Grzegorz Ziółkowski ◽  
...  
Keyword(s):  
Numerical Study ◽  
Metallic Foams ◽  
Ballistic Resistance

scholarly journals Experimental and Numerical Study of Ballistic Resistance of Composites Based on Sandwich Metallic Foams

2021 ◽  
Author(s):  
Anna Dmitruk ◽  
Krzysztof Naplocha ◽  
Joanna Pach ◽  
Dariusz Pyka ◽  
Grzegorz Ziółkowski ◽  
...  
Keyword(s):  
Impact Load ◽  
Numerical Study ◽  
Absorption Capacity ◽  
Polymer Materials ◽  
Metallic Foams ◽  
Ballistic Resistance ◽  
Polyurethane Resin ◽  
Computed Microtomography ◽  
Ct System ◽  
The Impact

AbstractIn recent years, hybrid composite materials are of increasing interest during the search for new materials to be used as ballistic barriers (shields) and kinetic energy absorbers. The main objective of this study is to test the energy absorption capacity of Zn-Al alloys filled with various polymer materials (epoxy resin, polyurethane resin and silicone). The ballistic resistance of modern hybrid materials to direct firing of a 5.56 × 45 mm SS109 projectile and during quasi-static piercing test is examined. Next, a numerical simulation in the ABAQUS environment is performed. In order to accurately reproduce the foam structure, a computed microtomography (CT) system is used. In the simulation of deformations of viscoplastic bodies, the Lagrange and Smoothed Particle Hydrodynamic (SPH) methods are applied. The obtained results from numerical analyses are verified with experimental results. Metallic foams are proven to have only a remote influence on the impact load, while, when filled with polyurethane resin, they show resistance to the overshoot. Performed simulation supports the detailed analysis of the impact energy dissipation for each of the samples.

Numerical Study on the Ballistic Impact on Lightweight Composite Armour

2014 ◽  
Vol 670-671 ◽  
pp. 824-828 ◽  
Author(s):  
Jiang Ren Lu ◽  
Xin Li Sun ◽  
Xing Hui Cai ◽  
San Qiang Dong ◽  
Guo Liang Wang
Keyword(s):  
Numerical Study ◽  
Thickness Ratio ◽  
Ceramic Fiber ◽  
Sandwich Composite ◽  
Fiber Layer ◽  
Ballistic Resistance ◽  
Finite Element Software ◽  
Steel Target ◽  
Potential Component ◽  
Ballistic Limit Velocity

A lightweight sandwich composite armours has been established by comparing the ballistic resistance of the potential component materials. The ballistic-resistance properties of the armours under impacting by the bullet with 12.7mm diameter are also numerically investigated by using finite element software LS-DYNA. Numerical modeling is used to obtain an estimate for the ballistic limit velocity (V50) and simulate penetration processes. The focus is placed on the energy absorption capabilities of different component layers with same density per unit area. The influence of stacking sequence and thickness ratio of ceramic/fiber layer has been analyzed in detail. Results indicate that the composite armour having optimal thickness ratio of ceramic/fiber layer in the same density and its mass is 29% lighter than of 4340 steel target.

Numerical Study on the Anti-Ballistic Properties of Metal Encapsulating Ceramic Composite Armors

2015 ◽  
Vol 723 ◽  
pp. 26-30 ◽  
Author(s):  
Jiang Ren Lu ◽  
Xin Li Sun ◽  
Xing Hui Cai ◽  
San Qiang Dong ◽  
Guo Liang Wang
Keyword(s):  
Ceramic Composite ◽  
Numerical Study ◽  
Three Dimensional ◽  
Ceramic Block ◽  
Ballistic Resistance ◽  
Limit Velocity ◽  
Ballistic Properties ◽  
Ballistic Limit Velocity ◽  
The Impact ◽  
Two Hybrid

The impact responses and ballistic resistance of the metal encapsulating ceramic composite armors with same area density and two hybrid cores are investigated. The hybrid cores include square metallic lattice with ceramic block insertions, and square metallic lattice with ceramic ball insertions and void-filling epoxy resin. Three-dimensional (3D) finite element (FE) simulations are carried out for each composite armors impacted by bullet with 12.7mm diameter. The focus is placed on the energy absorption capabilities and ballistic limit velocity of different composite armors. Results indicate that two kind of armors can improve the ballistic resistance properties and save mass of 22% and 25% compared to the homogeneous 4340 steel, respectively.

Effects of architecture on ballistic resistance of textile fabrics: Numerical study

2013 ◽  
Vol 23 (3) ◽  
pp. 359-376 ◽  
Author(s):  
P Tran ◽  
T Ngo ◽  
EC Yang ◽  
P Mendis ◽  
W Humphries
Keyword(s):  
Numerical Study ◽  
Ballistic Resistance ◽  
Textile Fabrics

A Composite Consisting of a Set of Hexagonal Ceramic Bars - The Numerical Study of the Ballistic Resistance

2011 ◽  
Vol 471-472 ◽  
pp. 1142-1146 ◽  
Author(s):  
Sebastian Stanislawek ◽  
Andrzej Morka ◽  
Tadeusz Niezgoda
Keyword(s):  
Reference Model ◽  
Numerical Study ◽  
Rigid Wall ◽  
Material Behavior ◽  
Aluminum Plate ◽  
Three Dimension ◽  
Projectile Impact ◽  
Ballistic Resistance ◽  
Behavior Simulation ◽  
The Impact

The paper presents a numerical study of a double layer composite panels impacted by a AP (Armor Piercing) 51WC projectile. The standard panel is built with aluminum and Al2O3 ceramic continuum layers while the studied model consists of the same aluminum plate but the front one is built with a set of hexagonal ceramic bars. The bar width and the impact position influence on the ballistic resistance are analyzed and compared with the reference solution. The problem has been solved with the usage of the modeling and simulation methods as well as finite elements method implemented in LS-DYNA software. Space discretization for each option was built by three dimension elements guarantying satisfying accuracy of the calculations. For material behavior simulation specific models including the influence of the strain rate and temperature changes were considered. Projectile Tungsten Curbide and aluminum plate material were described by Johnson-Cook model and ceramic target by Johnson-Holmquist model. In the studied panels the area surrounding back edges was supported by a rigid wall. The obtained results show interesting properties of the examined structures considering their ballistic resistance. All tests has given clear results about ballistic protection panel response under WC projectile impact. Panels consisting of sets of hexagonal ceramic bars are slightly easier to penetrate, reference model is stronger by 19% for smaller bars and by only 7% for bigger rods. Despite this fact, the ceramic layer is much less susceptible to overall destruction what makes it more applicable for the armor usage. Furthermore, little influence of the projectile impact point and consequently a part of the bar which is first destroyed is proved.

Risk evaluation of ballistic penetration by small caliber ammunition of live-fire shoot house facilities with comparison to numerical and experimental results

2021 ◽  
pp. 204141962098855
Author(s):  
Brad Gregory Davis ◽  
Jacob Thompson ◽  
William Morningstar ◽  
Ean McCool ◽  
Vishnu Peri ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Numerical Study ◽  
Target Material ◽  
Experimental Tests ◽  
Probability Of Failure ◽  
Accurate Estimate ◽  
Depth Of Penetration ◽  
Ballistic Resistance ◽  
Simulation Techniques ◽  
Steel Panels

The development of advanced small caliber weapon systems has resulted in rounds with more material penetration capabilities. The increased capabilities may mean that existing live-fire facilities will no longer be adequate for the training and certification of military and law enforcement personnel. Constraints on training in many live-fire shoot house facilities are already in place, with some allowing only single round impact during training. With little understanding of the probability of perforation, or failure, of existing containment systems, this study evaluates risk by studying the single round impact of small caliber ammunition against live-fire shoot house containment systems constructed from AR500 steel panels with two-inch ballistic rubber covering. An analytical and numerical study was conducted using an existing model for steel penetration developed by Alekseevskii-Tate and the EPIC finite element code. A modified form of the advancing cavity model for the ballistic resistance of the target material was used to account for the relatively unconfined material resulting from the studied impacts. These results are then compared to experimental tests conducted by Goodman for rounds of various small calibers impacting live-fire facility containment systems. Projectile and target characteristics were then modeled as continuous random variables, and Monte Carlo simulations were conducted using the validated analytical model to estimate the probability of a single round impact perforating the live-fire facility containment system. An importance sampling scheme was used to reduce the variance of the solution and provide a more accurate estimate of the probability of failure. The Alekseevskii-Tate model was found to provide accurate estimates of the depth of penetration when compared to experimental and numerical results at ordnance velocities and an estimate of the probability of failure is on the order of 1x10-5. This study provides useful tools for the analysis of existing live-fire facilities against future and existing ammunition, and for the design of new facilities. When coupled with Monte Carlo simulation techniques, a risk-based approach to certify live-fire facilities for use with any variety of small arms ammunition can be applied.

Numerical Study of the Shape Irregularity Gradient in Metallic Foams Under Different Impact Velocities

2017 ◽  
Vol 26 (8) ◽  
pp. 3892-3900 ◽  
Author(s):  
Yidong Wu ◽  
Liqun Tang ◽  
Zejia Liu ◽  
Yiping Liu ◽  
Zhenyu Jiang ◽  
...  
Keyword(s):  
Numerical Study ◽  
Metallic Foams ◽  
Shape Irregularity

A Numerical Study of Ballistic Resistance of a Single Layer Ceramic Target

2021 ◽  
pp. 235-247
Author(s):  
M. K. Khan ◽  
M. A. Iqbal ◽  
N. K. Gupta
Keyword(s):  
Numerical Study ◽  
Single Layer ◽  
Ceramic Target ◽  
Ballistic Resistance
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