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Article Dans Une Revue Strain Année : 2017

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

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Sébastien Joannès
Nicolas Feld

Résumé

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.

Dates et versions

hal-01610204 , version 1 (02-08-2018)

Identifiants

Citer

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, 2017, 53 (3), pp.e12220. ⟨10.1111/str.12220⟩. ⟨hal-01610204⟩
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