Study of Wood Plastic Composites elastic behaviour using full field measurements T. Ben Mbarek, L. Robert, F. Hugot, J.J. Orteu, H. Sammouda, A. Graciaa and B. Charrier EPJ Web of Conferences, 6 (2010) 28005 Published online: 10 June 2010 DOI: 10.1051/epjconf/20100628005