Experimental and numerical analysis of aramid fiber laminates with DCPD resin matrix subjected to impact tests

Bocian, Mirosław; Pach, Joanna; Jamroziak, Krzysztof; Kosobudzki, Mariusz; Polak, S.; Pyka, Dariusz; Kurzawa, Adam; Kurowski, Janusz

doi:10.1051/matecconf/201711204013

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…Figure 14.Comparison of obtained deflection value with other studies; previous studies taken from[54], E-glass, SB 21, E-glass, Kevlar 129, E-glass + Epoxy for 50 and 70 layers taken from[57], 19 and 17 layers of Kevlar + Epoxy taken from[58].…”

mentioning

confidence: 72%

“…So far, no widely used DCPD matrix in ballistic applications has been found in the literature, apart from previous research by the co-authors of this article in the following papers [50,54]. Further development of the methods used to prepare ballistic shields is an element of novelty, thanks to which it is possible to constantly strive to reduce BFS parameters.…”

Section: Comparison Of the Obtained Deflection Values To Other Matric...mentioning

confidence: 96%

“…Polymers 2023, 15, x FOR PEER REVIEW 16 of 21 then calculated. It is noted that the material arrangement of the external sample allowed for a significant reduction in the speed and kinetic energy of the projectile over time, so that during the contact of the projectile with the backing sample a much smaller part of the energy was transmitted to the backing sample, so it also allowed for a significant reduction in deflection compared to previous tests [42,50,54].…”

Section: Numerical Simulationsmentioning

confidence: 98%

“…The results obtained during the numerical test were exactly in the same range-the maximum deflection of the backing plate was exactly 5.39 mm as shown in the figure below (Figure 9). As a result of firing the rear sample in previous tests [54], a complete stop of the 9 × 19 mm Parabellum FMJ bullet was obtained; however, the dynamic deflection obtained during the test was then 28 mm. It should be mentioned that the initial speed of the bullet was 350 m/s, while as a result of the current tests it was 370 m/s, and apart from the complete stopping of the bullet, the deflection was also significantly reduced.…”

Section: Numerical Simulationsmentioning

confidence: 99%

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Multi-Layer Fabric Composites Combined with Non-Newtonian Shear Thickening in Ballistic Protection—Hybrid Numerical Methods and Ballistic Tests

Roszak,

Pyka,

Bocian

et al. 2023

Polymers

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Multi-layer fabrics are commonly used in ballistics shields with a lower bulletproof class to protect against pistol and revolver bullets. In order to additionally limit the dynamic deflection of the samples, layers reinforced with additional materials, including non-Newtonian fluids compacted by shear, are additionally used. Performing a wide range of tests in each case can be very problematic; therefore, there are many calculation methods that allow, with better or worse results, mapping of the behavior of the material in the case of impact loads. The search for simplified methods is very important in order to simplify the complexity of numerical fabric models while maintaining the accuracy of the results obtained. In this article, multi-layer composites were tested. Two samples were included in the elements subjected to shelling. In the first sample, the outer layers consisted of aramid fabrics in a laminate with a thermoplastic polymer matrix. The middle layer contained a non-Newtonian shear-thickening fluid enclosed in hexagonal (honeycomb) cells. The fluid was produced using polypropylene glycol and colloidal silica powder with a diameter of 14 µm in the proportions of 60/40. The backing plate was made using a 12-layer composite made of Twaron® para-aramid fabrics with a DCPD matrix—not yet used in a wide range of ballistics. Then, numerical simulations were carried out in the Abaqus/Explicit dynamic analysis. The Johnson–Cook constitutive strength model was used to describe the behavior of elastic–plastic materials constituting the elements of the projectiles. For the non-Newtonian fluid, a Up-Us EOS was used. The inner layers of the fabric were treated as an orthotropic material. Complete homogenization of the sample layers was carried out, thanks to which each layer was treated as a homogeneous continuum. As a parameter of fracture mechanics for shield components, the strain criterion was used with the smooth particles hydrodynamics method (SPH). Then, the results of simulations were compared with the results of the ballistic test for both samples placed next to each other, which resulted in the formation of a multi-layer composite in one ballistic test subjected to impact loads during firing with a 9 × 19 mm Parabellum FMJ projectile with an initial velocity of 370 ± 10 m/s. The results of numerical tests are very similar to the ballistic tests, which indicates the correct mapping of the process and the correct conduct of layer homogenization. The applied proportions of the components in the non-Newtonian fluid allowed a reduction in the deflection compared to previous studies. Additionally, the proposal to use a DCPD matrix allowed to obtain a much lower deflection value compared to other materials, which is a novelty in the field of production of ballistic shields.

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confidence: 72%

Section: Comparison Of the Obtained Deflection Values To Other Matric...mentioning

confidence: 96%

Section: Numerical Simulationsmentioning

confidence: 98%

Section: Numerical Simulationsmentioning

confidence: 99%

See 2 more Smart Citations

Multi-Layer Fabric Composites Combined with Non-Newtonian Shear Thickening in Ballistic Protection—Hybrid Numerical Methods and Ballistic Tests

Roszak,

Pyka,

Bocian

et al. 2023

Polymers

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“…The results showed that the samples containing the ceramic layer absorb 50% of the bullet energy and that the steel balls absorb 35% of the bullet energy. M. Bocian et al [16] studied and analyzed a shield plate made of Aramid fiber with a polymer. The plate was digitally recorded using the ABAQUS program to resist a bullet 9 × 19 mm and speed 350 m/s, the results showed the ability of the plates to absorb all energy from bullets and compare with the practical results.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Study of Multi-layer Armors for Personal Protection

Jassem

Jawad

Samarmad

et al. 2022

Phys. Chem. Solid St.

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Currently, personal armor is considered the basic requirement in combat, especially in the Middle East. The current research attempts to design and manufacture a novel body armor from cheap and available materials. When compared to traditional materials’ body armor, composite ballistic body armor has become a superior alternative for personal protection. In this study, alternative materials were proposed to develop an armor consisting of modified rubber and ebonite, as well as pieces of ceramic from alumina as hexagons shape, Kevlar and Carbon woven, and modern technologies shear thickening fluids. The armor was numerically evaluated using (ANSYS) commercial software using different bullet velocities ranging from (740 to 940) m/s and different numbers of carbon and Kevlar woven soaking shear thickening fluids to reach the best arrangement of layers with the best performance and compare them in the experimental data. The numerical results show the best performance for plate armor consisting of 23-layers, which were then experimentally tested using a weapon type (AK-47) rifle with bullet 7.62*39 mm. The experimental test showed no complete penetration, with a back deformation of 7.5 mm. When the shock of the double bullet into the plate at the same location showed no complete penetration with a back deformation of 11.3 mm, the body armor exhibited superior protective performance and was compatible with standard NIJ Standard-0101.03.

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Structural Performance of Reinforced Concrete (RC) Moment Frame Connections Strengthened Using FRP Composite Jackets

Maraş

Kantarcı

2021

Arab J Sci Eng

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Experimental and numerical analysis of aramid fiber laminates with DCPD resin matrix subjected to impact tests

Cited by 9 publications

References 12 publications

Multi-Layer Fabric Composites Combined with Non-Newtonian Shear Thickening in Ballistic Protection—Hybrid Numerical Methods and Ballistic Tests

Multi-Layer Fabric Composites Combined with Non-Newtonian Shear Thickening in Ballistic Protection—Hybrid Numerical Methods and Ballistic Tests

Numerical and Experimental Study of Multi-layer Armors for Personal Protection

Structural Performance of Reinforced Concrete (RC) Moment Frame Connections Strengthened Using FRP Composite Jackets

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