A consistent experimental protocol for the strain rate characterization of thermoplastic fabrics

Fabien Coussa 1 Jacques Renard 1 Sébastien Joannès 1 Jean-Christophe Teissedre 1 Rémy Bompoint 2 Nicolas Feld 3
1 MAT - Centre des Matériaux
2 PSA - PSA Peugeot - Citroën
3 Safran Tech
Abstract : This paper introduces an experimental procedure aiming at performing a consistent mechanical characterization of textile composites behavior, under static and dynamic loadings, and particularly their macroscopic strain rate-dependent mechanisms. The procedure includes the design and validation of a reduced specimen adapted to dynamic testing, which guarantees the consistency of the identified macroscopic properties under a wide range of strain rates. An interrupted high speed tensile apparatus was also developed to investigate the strain rate sensitivity of the nonlinear constitutive behavior from math formula = 10 − 4 s − 1 to 102 s − 1. The originality of this experimental device lies in its ability to stop high speed loadings before ultimate failure, at adjustable, accurate strain levels. Finally, an extensive characterization campaign was performed. Results reveal a high strain rate dependency of the linear and nonlinear behavior. The procedure therefore generates consistent characterization data that may trustworthily be used for modeling purposes.
Keywords : Dynamic testing interrupted tests specimen design strain rate sensitivity woven composite
Type de document :
Article dans une revue
Strain, Wiley-Blackwell, 2017, 53 (3), e12220, 14 p. 〈10.1111/str.12220〉
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https://hal-mines-paristech.archives-ouvertes.fr/hal-01610204
Contributeur : Odile Adam <>
Soumis le : mercredi 4 octobre 2017 - 15:24:55
Dernière modification le : mardi 27 mars 2018 - 16:06:15

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Fabien Coussa, Jacques Renard, Sébastien Joannès, Jean-Christophe Teissedre, Rémy Bompoint, et al.. A consistent experimental protocol for the strain rate characterization of thermoplastic fabrics. Strain, Wiley-Blackwell, 2017, 53 (3), e12220, 14 p. 〈10.1111/str.12220〉. 〈hal-01610204〉

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