Multi-scale finite element modeling of ballistic impact onto woven fabric involving fiber bundles

Yan

Polymers for Advanced Techs

et al. 2021

This study reveals the finite element modeling of mechanical failure behavior of shear thickening fluid (STF)/fiber composites under impact. Numerical analysis and finite element modeling of the rheological properties of non-Newtonian fluid, STF are introduced. This review summarizes the model coupling methods in finite element modeling and the mechanical failure behavior prediction models of STF/fiber composites under impact. Further, the influencing factors on the accuracy of mechanical failure simulation models are analyzed. Factors such as the friction between fibers, shear rate, filler particles in the fibers, hysteresis effect and the boundary conditions should be considered in simulating the shear thickening effect of the composites.

Section: Model Establishment and Finite Element Modeling Of Stf/fiber Compositesmentioning

confidence: 99%

Section: Model Establishment and Finite Element Modeling Of Stf/fiber Compositesmentioning

confidence: 99%

The numerical simulation of the mechanical failure behavior of shear thickening fluid/fiber composites: A review

Yan

Polymers for Advanced Techs

et al. 2021

Journal of Composite Materials

“…A microscopic fabric model was recently performed by Yang et al . 29 Microscopic behaviour of fabric was studied. However, 400 actual fibres were only represented by 17 virtual fibres.…”

Section: Introductionmentioning

confidence: 99%

Mechanical performance and failure analysis of a fabric subjected to ballistic impact using multi-scale numerical modelling

Pham

Long

Imad

2023

In this paper, multi-scale numerical modelling analysis is proposed to study the ballistic responses of a Kevlar KM2 woven fabric. Three meso-microscopic multi-scale numerical models are conducted by varying the number of microscopic primary yarns in the impact zone from 2 to 10. In each model, we analyse the evolution of the contact force, the projectile velocity and the fabric energies. An analysis of the failure modes of each configuration is also performed. Results of the three multi-scale models and a mesoscopic model are compared in order to find the optimal number of microscopic primary yarns to predict the fabric’s ballistic behaviour. It is highlighted that the multi-scale model consumes a reasonable computation cost. Furthermore, with the primary yarns modelled in the fibre scale, this model can fully describe the complex physical phenomena, such as fibre failure and the interaction between fibres, fibres and yarns, that occur during the impact.

Fibres &Amp; Textiles in Eastern Europe

“…[2] Several studies have been performed to explore the impact behavior of these high-performance fabrics. [3][4][5][6][7][8] The investigation methods for the impact behavior of these high-performance fabrics have been confined to empirical, analytical and numerical methods. The empirical method uses experimental data to investigate ballistic impact responses and different mechanisms in material failure.…”

Section: Introductionmentioning

confidence: 99%

Study on Low-Velocity Impact Behavior of Twaron® Fabric Subjected to Double-Impactor Impact from a Numerical Analysis Perspective

Huang

Cui

Qiu

et al. 2023

In the present study, a finite element impact model was developed and analyzed using commercial FEM code ANSYS® and then validated via a drop-weight impact experiment. Moreover, double-impactor impact models were designed and developed with different impact distribution and locations of two impactors to compare impact properties. A total of 18 impact scenarios comprised of asymmetric and symmetric types were performed. The effect of impact location on the impact resistance force and duration time was investigated: the closer the impact point is to the fabric center, the longer the impact duration time. In addition, the effect of impact location on impactor failure deflection was also investigated and it was concluded that regardless of the symmetric or asymmetric impact scenario, the smaller the average distance between the impact location of the two impactors from the fixed boundary, the smaller the overall average failure deflection that occurs. The relevance of impact location and fabric energy absorption capacity was also identified. Furthermore, the effect of impact location on fabric stress distribution and transverse deformation and of the variation of the impact velocity on fabric impact behaviors were investigated. These findings will provide important guidance for engineering soft body armor and composite materials.