Measurements of dynamic properties of ballistic yarns using innovative testing devices

Chevalier, Caroline; Kerisit, Christophe; Klavzar, Andreas; Boussu, François; Coutellier, Daniel

doi:10.1016/b978-1-78242-461-1.00007-8

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…Only numerical models applied to woven structures can provide the different dynamic deformations of the yarns over time [6,7]. Depending on the accuracy and complexity of the numerical models used, the dynamic deformations of the yarns inserted into a woven structure are more or less faithfully represented [8,9].…”

Section: Introductionmentioning

confidence: 99%

Development of Piezoresistive Sensor Yarn to Monitor Local Fabric Elongation

2021

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The performance of bulletproof vests is mainly based on the energy absorption capacity of the flexible fibrous reinforcements. To understand the in situ behaviour of these textile structures during a ballistic impact, we find the use of sensor yarns integrated into these fibrous reinforcements to be a non-invasive and reliable solution. Measurements of the dynamic deformation of the sensor yarns will provide a new and useful source of information. The design and manufacturing stages of a sensor yarn, made with the same structural yarns of the fabric, are detailed successively. Then, different batches of sensor yarns were designed, and electromechanical tensile tests were performed in quasi-static mode. These experiments provide encouraging results for the measurement of the deformation of a textile structure subject to a dynamic impact.

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Section: Introductionmentioning

confidence: 99%

Development of Piezoresistive Sensor Yarn to Monitor Local Fabric Elongation

2021

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A new experimental setup to characterize the dynamic mechanical behaviour of ballistic yarns

Chevalier

Kerisit

Boussu

et al. 2016

Meas. Sci. Technol.

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Fabrics have been widely used as part of ballistic protections since the 1970s and the development of new ballistic solutions made from fabrics need numerical simulations, in order to predict the performance of the ballistic protection. The performances and the induced mechanisms in ballistic fabrics during an impact depend on the weaving parameters and also on the inner parameters of the yarns used inside these structures. Thus, knowing the dynamic behaviour of yarn is essential to determine the ballistic behaviour of fabrics during an impact.Two major experimental devices exist and are used to test ballistic yarns in a dynamic uniaxial tension. The first one corresponds to the Split Hopkinson Tensile Bars device, which is commonly used to characterize the mechanical properties of materials in uniaxial tension and under high loading. The second one is the transversal impact device. The real conditions of ballistic impact can be realized with this device.Then, this paper deals with a new experimental setup developed in our laboratory and called the 'tensile impact test for yarn' (TITY) device. With this device, specific absorbed energy measurements of para-aramid yarns (336 Tex, Twaron ™ , 1000 filaments) have been carried out and revealed that static and dynamic properties of para-aramid are different.

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Measurements of dynamic properties of ballistic yarns using innovative testing devices

Cited by 2 publications

References 18 publications

Development of Piezoresistive Sensor Yarn to Monitor Local Fabric Elongation

Development of Piezoresistive Sensor Yarn to Monitor Local Fabric Elongation

A new experimental setup to characterize the dynamic mechanical behaviour of ballistic yarns

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