Impact performance analysis of a novel rubber-composite combat helmet

Jităraşu, Octavian; Lache, Simona; Velea, Marian N.

doi:10.1177/09544062221132700

Cited by 3 publications

(1 citation statement)

References 16 publications

(26 reference statements)

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“…The numerical results obtained for the two types of body armor under ballistic impact have been validated by experimental tests. The rubber layer is positioned on the striking face of the armor, thus following the research results of Jitarasu et al 19 showing that the combination of material proprieties of Kevlar fibers reinforced polyethylene and rubber lead to very good ballistic performance for individual safety equipment. Finally, the fracture conoid angle of the ceramic tile, as one of the most important parameters to investigate the damage of ceramic tile in the process of penetration, is calculated.…”

Section: Introductionmentioning

confidence: 88%

Ballistic performance of monolithic rubber-ceramic composite armor

Octavian,

Simona

2024

Journal of Composite Materials

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This work presents the research results regarding the ballistic response characteristics of monolithic ceramic armors. Two different configurations of armors are considered for investigation, aiming at identifying ways to increase the ballistic performance of Small Arms Protective Insert (SAPI). The first configuration consists of a monolithic ceramic tile (Al2O3) with a backing plate made of high-performance Kevlar-29 fiber reinforced composite; the second one has the same design as the first, but the monolithic ceramic tile is covered by a thin rubber layer. The impact behavior of the ceramic composite armors is analyzed numerically, using the finite element method. Some characteristic features, including the ballistic performance and the fracture conoid angle (for the ceramic tile) are discussed. The numerical models developed for the two armor configurations are validated by ballistic tests, where the projectile impact on the armors and the mechanical integrity of the armor systems after impact are observed. The results from simulations and experiments show that the Al2O3/Kevlar 29 composite armor is able to capture a 7.62 mm bullet with a striking velocity of 690 m/s and the rubber-ceramic composite armor is able to capture 5.56 × 45 mm bullet M855 (with an armor piercing tip) with an impact velocity of 894 m/s. It has been found that, when a rubber layer is placed on the front face of a ceramic composite armor, better ballistic performance is achieved. The experiments show that, when a rubber material is impacted by a projectile, its behavior at high velocities and high strain rates changes from elastic to brittle.

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Section: Introductionmentioning

confidence: 88%

Ballistic performance of monolithic rubber-ceramic composite armor

Octavian,

Simona

2024

Journal of Composite Materials

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Mechanism of resistance to deformation for damaged mechanical elastic wheel: Rubber damage research based on peridynamic

Zhang,

Zhao,

Lin

et al. 2024

Engineering Science and Technology, an International Journal

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In-Silico Model Validation of Impact on a Composite Helmet Shell

Jennings,

Amini,

Müftü

2024

ASME Open Journal of Engineering

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Numerical impact simulation plays a critical role in the development and improvement of helmet systems. Due to the curvature of the helmet, the selection of impact position on the helmet may affect the ability to correlate results between numerical models and experimental results. In this study, high-velocity impact simulations were performed on composite plates, as well as a model of a modern composite helmet to validate helmet model performance. Results of the composite plate simulation show a non-converging increase in composite deformation with mesh refinement, indicating that model validation is a function of both material properties and mesh selection. Results of impact on the helmet model show that the calculated deformation of the helmet increases by up to 35% with a 20 mm change in impact position. The positional variation of helmet deformation is most pronounced on the front of the helmet. Due to the significant effect that impact position has on helmet deformation, the numerical model validation cannot be performed against experimental tests of a “small” sample size.

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Impact performance analysis of a novel rubber-composite combat helmet

Cited by 3 publications

References 16 publications

Ballistic performance of monolithic rubber-ceramic composite armor

Ballistic performance of monolithic rubber-ceramic composite armor

Mechanism of resistance to deformation for damaged mechanical elastic wheel: Rubber damage research based on peridynamic

In-Silico Model Validation of Impact on a Composite Helmet Shell

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