Study of Wood Plastic Composites elastic behaviour using full field measurements

T. Ben Mbarek 1, 2 Laurent Robert 3 Françoise Hugot 4 Jean-José Orteu 3 H. Sammouda 1 Alain Graciaa 2 B. Charrier 2
1 LETTM - Energétique et Transferts Thermique et Massique
2 IUT - IUT des Pays de l'Adour
3 ICA - Institut Clément Ader
4 UNILIM - Université de Limoges
Abstract : In this study, the mechanical properties and microstructure of HDPE/wood fibre composites are investigated. The four-point bending and tensile behaviour of Wood Plastic Composite (WPC) with or without additive are studied by using full-field strain measurements by 3-D Digital Image Correlation (3-D DIC). A non-linear behaviour is shown. The modulus of elasticity (MOE) is calculated as the tangent at zero strain of a Maxwell-Bingham model fitted onto experimental data. Four-point bending tests are analyzed thanks to the spatial standard deviation of the longitudinal strain field to determine the degree of heterogeneity. Cyclic tensile tests have been performed in order to analyze the damage of the material. Moreover, Scanning Electron Microscope (SEM) is used to characterize the morphology of the wood fibre/HDPE matrix interface for specimens with maleic anhydride modified polyethylene additive (MAPE).
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T. Ben Mbarek, Laurent Robert, Françoise Hugot, Jean-José Orteu, H. Sammouda, et al.. Study of Wood Plastic Composites elastic behaviour using full field measurements. ICEM 14 - 14th International Conference on Experimental Mechanics, Jun 2010, Poitiers, France. pp.28005, ⟨10.1051/epjconf/20100628005⟩. ⟨hal-01644890⟩

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