Polymers and Polymer Composites
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Title: Full-field measurement at the weave scale in hemp/epoxy composite using digital image correlation
Page Range: p.589-600
Author(s): Perrier A; de Vasconcellos D S; Touchard F; Chocinski-Arnault L; Mellier D
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Issue No: No.9
This paper presents the strain field analysis of a woven hemp composite. Two different stacking sequences were tested: [0/90]7 and [plus/minus 45]7. Tensile tests were coupled with a digital image correlation method in order to measure in-plane longitudinal, transverse and shear strain fields. Strong heterogeneities were observed in both stacking sequences. The obtained spatial resolution was fine enough to allow the comparison of maximum and minimum deformation areas in strain fields with the corresponding weave architecture. It was observed that strain levels were directly linked with strand positions. Results gave, for the studied woven hemp composite, a complete analysis of the local deformation mechanisms. 26 Refs.