Effect of the inter-fiber friction on fiber damage propagation and ballistic limit of 2-D woven fabrics under a fully confined boundary condition

Wang, Youqi; Miao, Yuyang; Huang, Lejian; Swenson, Daniel; Yen, Chian-Fong; Yu, Jian; Zheng, James

doi:10.1016/j.ijimpeng.2016.06.007

Cited by 48 publications

(25 citation statements)

References 26 publications

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“…× 1 in. rectangular Kevlar KM2 2-D plain weave generated by DFMA [5,8,9]. Projectile is positioned above the fabric geometric center, with an initial velocity of 50m/s directed towards the fabric.…”

Section: Materials Properties and Projectile Geometrymentioning

confidence: 99%

“…Figure 1 shows three key elements of DEA and its unit-cell micro-geometry of 3-D woven textile generated by Dynamic Fabric Mechanics Analyzer(DFMA) [7] utilizing dynamic relaxation process with periodic boundary conditions [8]. In 2016, Wang and Miao [9] implemented a Monte Carlo process to assign a unique strength to each element following a bimodal Weibull distribution function to investigate the effect of inter-fiber friction coefficient on fabric ballistic performance. Although, fiber damage propagation, fabric perforation mechanisms and their relations between interfiber friction coefficient are analyzed in detail, ballistic performance against FSP is never discussed at filament level.…”

Section: Introductionmentioning

confidence: 99%

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Validation of the modified digital element approach for simulating ballistic impact against fragment simulating projectile

Wang

2018

MATEC Web Conf.

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Abstract.A modified digital element approach (DEA) is applied to simulate fabric perforation process under ballistic impact. The previous version of the DEA is capable of simulating ballistic impact of textile fabric using rigid body spherical and cylindrical projectiles only. Fragment simulating projectile (FSP) and real bullets are not modeled. The subject of this research is to perform ballistic penetration process against projectile of arbitrary shape and validate the modified DEA. A fabric to solid body projectile contact search and contact force calculation algorithm is established. Ballistic impact of textile fabrics against spherical and cylindrical projectiles is performed using the previous DEA and the modified DEA separately. Numerical results are compared to the well published DEA results to investigate the fabric bullet resistant performance.

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Section: Materials Properties and Projectile Geometrymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Validation of the modified digital element approach for simulating ballistic impact against fragment simulating projectile

Wang

2018

MATEC Web Conf.

Self Cite

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“…More recently fibre-level modelling has been adopted for an entire fabric or a part of it [11][12][13][14]. Since their high computational requirement, these last models are only justified when microscopic effects, as fibre-fibre interaction or yarn section rearrangement, would be tracked.…”

Section: Introductionmentioning

confidence: 99%

“…The original approach, denoted Digital Element Method, was developed by Wang et al to simulate weaving processes [15][16][17]. This method was successively improved by different authors [18,19] and finally extended to impact applications [11,14]. In this specific approach, yarns are modelled as a group of ''Digital Fibres".…”

Section: Introductionmentioning

confidence: 99%

Numerical investigations on a yarn structure at the microscale towards scale transition

Sorbo

Girardot

Dau

et al. 2018

Composite Structures

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Since the beginning of the last decade, few examples of multifilament models for dry fabrics have been presented in literature. This work deals with the simulation of a single yarn subjected to transverse impact. Inspired by the models previously developed by other authors, a revisited form of Discrete Element Method has been adopted to perform microscopic analyses in a more efficient computational environment. Transverse impact analysis onto a single KEVLAR KM2 yarn has been performed using this approach. Truss elements have been adopted to discretize yarn filaments instead of heavy computational 3D finite elements. A good agreement with literature results has been achieved with an important reduction of computational resource. In the end, a proposed scale transition is discussed.

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“…Finally, microscopic or multifilament models descent into the scale of fibers. In this case, yarns which comprise the fabric are modeled as an assemble of real or equivalent fibers [6] in order to take into account fiber-fiber friction dissipation and yarn transverse behaviour. Obviously this type of models considers the majority of the physical aspects which contribute to define the structure ballistic properties, anyway they are related to a significant, usually unacceptable, computational cost even for a single textile layer model.…”

Section: Introductionmentioning

confidence: 99%

Hyperelastic modelling of yarn structures for dynamic applications

et al. 2018

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Dry fabrics comprised of high performance polymeric fibers have been widely used as protection layers in structures submitted to high velocity impacts (HVI). Their outstanding impact energy dissipation ability combined with an high strength-to-weight ratio make them a preferable choice in different applications such as bullet vests or blade containment systems over standard materials. Among the different approaches adopted to study these structures numerical methods assume a central role. Thanks to their reduced costs and the related possibility of evaluating the effects of single phenomena, they are often used to predict the structure ballistic limits or to study the physical events which occur during the penetration. Among the different strategies adopted to model a fabric, mesoscopic models have been largely adopted by different authors. These models assume the yarns as a continuum body while the fabric geometry is explicitly described. Nowadays yarn material models are universally assumed to be linear elastic and orthotropic. This modelling approach mostly focuses on the longitudinal behaviour of the yarn, however fiber-scale analyses and experimental results shows the importance of three-dimensional stress state on the ballistic limit. In order to obtain a three-dimensional description of the yarn strain state during the impact, a novel hyperelastic model for yarn structures here is developed. In a first step, fiber-level preliminary analyses have been performed to obtain the effective behaviour of these structure under the projectile collision. In the second step, the hyperelastic model has been implemented and identified thanks to microscopic elementary tests. Finally, a continuum model of the yarn have been performed. First results show the relevance of the hyperelastic model compared to the fiber-level observation and enhance the limit of the classical linear elastic material model.

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Effect of the inter-fiber friction on fiber damage propagation and ballistic limit of 2-D woven fabrics under a fully confined boundary condition

Cited by 48 publications

References 26 publications

Validation of the modified digital element approach for simulating ballistic impact against fragment simulating projectile

Validation of the modified digital element approach for simulating ballistic impact against fragment simulating projectile

Numerical investigations on a yarn structure at the microscale towards scale transition

Hyperelastic modelling of yarn structures for dynamic applications

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