Ballistic impact mechanisms – A review on textiles and fibre-reinforced composites impact responses

Abtew, Mulat Alubel; Boussu, François; Bruniaux, Pascal; Loghin, Carmen; Cristian, Irina

doi:10.1016/j.compstruct.2019.110966

Cited by 231 publications

(127 citation statements)

References 234 publications

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“…Among aramid fibers, Vectran [71] was selected for the construction of high-strength fabrics of the inflatable plug. Vectran is commonly used in aerospace applications where high-strength, high foldability with minimum degradation is required [72][73][74][75][76][77][78][79][80][81][82][83]. Phase 2 provided much useful information regarding deployment and initial inflation characteristics, but it culminated with a failure of the full-scale, single-layer Vectran fabric plug.…”

Section: Results Of Experimental Evaluationsmentioning

confidence: 99%

Large-scale inflatable structures for tunnel protection: a review of the Resilient Tunnel Plug project

Sosa

Thompson

Holter

et al. 2020

J Infrastruct Preserv Resil

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The protection of underground civil infrastructure continues to be a high priority for transportation and transit security agencies. In particular, rail transit tunnels running under bodies of water are susceptible to disruptions due to flooding caused by extraordinary climatic events such as hurricanes or other events resulting from human activities. Several events have taken place in the past decades that have demonstrated the need to mitigate vulnerabilities or, at least, minimize the consequences of catastrophic events. Although it is impossible to prevent all situations that can lead to flooding, damage can be substantially decreased by reducing the area affected by the event. To minimize the effects of an event, a possible approach is to compartmentalize the tunnel system by creating temporary barriers that can contain the propagation of flooding until a more permanent solution can be implemented. One way to create a temporary barrier is by the deployment of a large-scale inflatable structure, also known as an inflatable plug. In such an application, the inflatable structure is prepared for placement, either permanently or temporally, and maintained ready for deployment, inflation, and pressurization when needed. The internal plug pressure imparts a normal force against the tunnel wall surface with the friction between the plug and tunnel surfaces opposing axial movement of the plug. The sealing effectiveness depends on the ability of the inflatable structure to self-deploy and fit, without human intervention, to the intricacies of the perimeter of the conduit being sealed. Primary design constraints include having the plug stowed away from the dynamic envelope of the trains and being able to withhold the pressure of the flooding water. This work presents a compilation of the main aspects of the activities completed for the development of large-scale inflatable structures as part of the Resilient Tunnel Plug (RTP) Project. The main test results and lessons learned are presented to demonstrate the viability of implementing large-scale inflatable plugs for the containment of flooding in rail tunnels systems. Over 400 coupon and specimen tests, 200 reduced scale tests, and 100 full-scale tests were conducted to demonstrate the efficacy of the design of different prototypes over a 10-year research and development project. The culmination of the work was 12 large-scale flooding demonstrations where the inflatable tunnel plug was shown able to be deployed remotely and withstand a simulated flooding event.

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Section: Results Of Experimental Evaluationsmentioning

confidence: 99%

Large-scale inflatable structures for tunnel protection: a review of the Resilient Tunnel Plug project

Sosa

Thompson

Holter

et al. 2020

J Infrastruct Preserv Resil

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“…These factors affect the transmitting velocity of the stress wave that is generated by the impact of the projectile. The wave must be dispersed rapidly, and the breaking energy must be as high as possible to increase the impact resistance and the ballistic limit (velocity at which the projectile passes through the material) [46].…”

Section: Theoretical Studymentioning

confidence: 99%

Numerical Modelling of Ballistic Impact Response at Low Velocity in Aramid Fabrics

et al. 2019

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In this study, the effect of the impact angle of a projectile during low-velocity impact on Kevlar fabrics has been investigated using a simplified numerical model. The implementation of mesoscale models is complex and usually involves long computation time, in contrast to the practical industry needs to obtain accurate results rapidly. In addition, when the simulation includes more than one layer of composite ply, the computational time increases even in the case of hybrid models. With the goal of providing useful and rapid prediction tools to the industry, a simplified model has been developed in this work. The model offers an advantage in the reduced computational time compared to a full 3D model (around a 90% faster). The proposed model has been validated against equivalent experimental and numerical results reported in the literature with acceptable deviations and accuracies for design requirements. The proposed numerical model allows the study of the influence of the geometry on the impact response of the composite. Finally, after a parametric study related to the number of layers and angle of impact, using a response surface methodology, a mechanistic model and a surface diagram have been presented in order to help with the calculation of the ballistic limit.

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“…Also the prospect of framing the crucial structures to close net-shape using woven preforms using advanced moulding techniques has prompted their utilization in superior structural applications, for example, aviation, automobile, and defense industries. [1][2][3][4] Several researchers have displayed a survey of the variables that influence on properties and dynamic response of aramid composites using different analytical, numerical and experimental methods and, are extensively discussed in the review articles.…”

Section: Introductionmentioning

confidence: 99%

Multi‐scale modeling of three‐dimensional angle interlock woven composite subjected to ballistic impact using FEM

Dewangan

Panigrahi

2020

Polymers for Advanced Techs

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The multi‐scale modeling and Finite element (FE) analysis of three‐dimensional angle interlock woven composites (3DAIWC) subjected to ballistic impact by conical‐cylindrical projectile have been studied in the present research. A multi‐scale modeling technique has been adopted in the Finite Element Analysis (FEA), which incorporates micro‐meso‐macro‐transition approach called macro‐homogeneous meso‐heterogeneous modeling technique. This macro‐meso‐micro‐transition approach has been implemented in the present research to develop the complex weave architecture of the target plate. A voxel‐based nonconformal mesh has been utilized to understand the behavior of the representative volume element (RVE) of the woven composite target plate. The model is validated by two dimensional weave architecture, which is analyzed for varying nose shapes (30° conical ‐ 180° flat). The macro‐homogeneous results provide the velocity variation and energy absorption of the projectile with respect to the time history.

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Ballistic impact mechanisms – A review on textiles and fibre-reinforced composites impact responses

Cited by 231 publications

References 234 publications

Large-scale inflatable structures for tunnel protection: a review of the Resilient Tunnel Plug project

Large-scale inflatable structures for tunnel protection: a review of the Resilient Tunnel Plug project

Numerical Modelling of Ballistic Impact Response at Low Velocity in Aramid Fabrics

Multi‐scale modeling of three‐dimensional angle interlock woven composite subjected to ballistic impact using FEM

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