Analytical and numerical modelling of high-velocity impact on multilayer alumina/aramid fiber composite ballistic shields: Improvement in modelling approaches

Gregori, Davide; Scazzosi, Riccardo; Nunes, Stephanie Gonçalves; Amico, Sandro Campos; Giglio, Marco; Manes, Andrea

doi:10.1016/j.compositesb.2020.107830

Cited by 42 publications

(22 citation statements)

References 40 publications

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“…Gregori et al 16 developed a simulation model to study the multilayer alumina/aramid fiber composite ballistic performance using a full-Lagrangian FE analysis with the software LS-DYNA (LS-DYNA SMP R11), and the impact tests were in good agreement with analytical and numerical modeling. Abtew et al 17 gave a review about ballistic impact mechanisms of textiles and fiber-reinforced composites impact responses, and summarized the main factors affecting the ballistic impact performances.…”

Section: Introductionmentioning

confidence: 96%

Design and bulletproof performance investigation on the ceramic/metal laminated composite

Deng

Gao

et al. 2020

Advanced Composites Letters

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In the current study, seven types of laminated composites are designed to replace the existing 616 steel plate with 5 mm thickness for the bulletproof. An explicit dynamic finite element model is developed to simulate the bullet penetration process using ANSYS Workbench software. And a specific bulletproof coefficient, which considers the ultimate bulletproof speed and area density of the target plate, is proposed and calculated, and the overall bulletproof performances of the composites and 616 steel plate are compared. The specific bulletproof coefficients of seven composites are increased by 12.53%, 14.77%, 13.28%, 12.20%, 19.59%, 23.81%, and 20.67%, respectively. The type F is the optimal type among all the structures. Eventually, the optimal composites are validated under different bullet hit positions and double-bullet situations. Results show that all the seven composites and 616 steel with 5 mm thickness can effectively defend 5.62 mm bullets, and no damage or failure is observed. Although the impact stiffness and ultimate bulletproof speed are both decreased, the area density and density are also significantly decreased.

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Section: Introductionmentioning

confidence: 96%

Design and bulletproof performance investigation on the ceramic/metal laminated composite

Deng

Gao

et al. 2020

Advanced Composites Letters

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“…4 Several studies in the recent times have tried to develop numerical or analytical models characterizing ballistic impact on different types of polymer composites, viz., hybrid shields consisting of metal/ceramic composites and aramid fibers in copolymer matrix, 5 UHMWPE hybrid panels, 6 textile based woven body armor systems, 7 and multilayer alumina/aramid fiber composites. 8 To the best of the authors' knowledge, there is no comprehensive soft armor numerical model publicly available whose numerical results closely match ballistic experimental data with respect to all the components involved, i.e., bullet, shootpack, and clay backing.…”

Section: Introductionmentioning

confidence: 99%

Building a predictive soft armor finite element model combining experiments, simulations, and machine learning

Pittie

Kartikeya

Bhatnagar

et al. 2023

Journal of Composite Materials

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Despite its relevance for law enforcement applications, the design of soft armor has mainly been based on a trial-and-error approach. In this paper, a combined experimental, machine learning, and finite element analysis framework is used to build a predictive numerical model for the analysis and hence, design of soft armor. The material models for major components of the soft armor certification system—bullet, shoot pack, straps, and clay backing, are first constructed using laboratory tests and publicly available data. Next, three metrics, namely, back face signature (BFS), number of penetrated shoot-pack layers, and mushrooming of the bullet are established to gauge the model’s accuracy with respect to the laboratory ballistic test data. A machine learning (ML) model is used as a surrogate to predict the BFS and the number of eroded elements. Finally, optimized material model parameters are obtained through ML-based surrogate model and Bayesian optimization algorithm. The final validation of the developed framework is carried out using laboratory ballistic test data involving multiple shots on the shoot pack. The results indicate that reliable predictive data can be obtained using the developed process, and likely, can be extended for use in modeling other impact simulations.

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“…The ballistic response of zirconia toughened alumina backed with aramid laminated composite armour system has been investigated by Nayak et al 26 They used two types of composites, that is, Twaron-epoxy and Twaron-polypropylene. Gregori et al 27 proposed an analytical method that has been validated through numerical simulations for the penetration of ceramic-composite systems by small-calibre projectiles.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of ballistic impact on multilayer ceramic backed fibre reinforced composite target plate

Biswas

Datta

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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Fibre reinforced polymer composites have been established as potential materials for making body armours. The present work depicts estimation of ballistic resistance of multilayer ceramic backed fibre reinforced composite target through 3D numerical simulation using Ansys/Autodyn software. The present numerical and material models have been validated against the results available in the literature. After that, the velocity–time history of the projectile is examined for impact velocities ranging between 330 to 1200 m/s. Here, the study has been focused on predicting the progressive damage and failure modes of the ceramic-composites target plate under impact. Also, the variation in residual velocities, time of penetration/perforation with different incident velocities, damage pattern in the deformable projectile and the kinetic energy of the impactor is studied. Finally, the trend of variation of ballistic limit velocity with different masses and diameter of the impactor has also been investigated.

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Analytical and numerical modelling of high-velocity impact on multilayer alumina/aramid fiber composite ballistic shields: Improvement in modelling approaches

Cited by 42 publications

References 40 publications

Design and bulletproof performance investigation on the ceramic/metal laminated composite

Design and bulletproof performance investigation on the ceramic/metal laminated composite

Building a predictive soft armor finite element model combining experiments, simulations, and machine learning

Numerical simulation of ballistic impact on multilayer ceramic backed fibre reinforced composite target plate

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