Advanced analysis of the bias-extension of woven fabrics with X-ray microtomography and Digital Volume Correlation - Archive ouverte HAL
Article Dans Une Revue Composites Part A: Applied Science and Manufacturing Année : 2023

Advanced analysis of the bias-extension of woven fabrics with X-ray microtomography and Digital Volume Correlation

Résumé

The bias-extension test is widely used to study the mechanics of woven fabrics undergoing large deformation. Standard analyses focus on the in-plane shear deformation, but rarely on other deformation modes. Here, the bias-extension of a basalt fiber twill was performed inside a X-ray microtomograph to get 3D in situ observations. The 3D images were used in a dedicated Digital Volume Correlation procedure that enabled relevant 3D strain invariants to be estimated. Coupled with important in-plane shear and moderate tension along the yarns, significant 3D compaction was observed as a complex combination involving out-of-plane auxetic expansion and in-plane compaction. The transition between sheared regions extends to 2-3 unit cells of the fabric, highlighting the role of the fibrous micro and mesostructures. This unique 3D experimental database enriches the knowledge on the mechanics of woven fabrics and provides valuable information for the development of generalized continuum approaches to model their mechanical behavior.

Dates et versions

hal-04661866 , version 1 (25-07-2024)

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Citer

O. Stamati, L. Orgeas, S. Rolland Du Roscoat, P. Lhuissier, P. J. J. Dumont, et al.. Advanced analysis of the bias-extension of woven fabrics with X-ray microtomography and Digital Volume Correlation. Composites Part A: Applied Science and Manufacturing, 2023, 175, ⟨10.1016/j.compositesa.2023.107748⟩. ⟨hal-04661866⟩
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