Systematic description of the effect of particle shape on the strength properties of granular media Emilien Azéma, Nicolas Estrada, Itthichai Preechawuttipong, Jean-Yves Delenne and Farhang Radjai EPJ Web Conf., 140 (2017) 06026 Published online: 30 June 2017 DOI: 10.1051/epjconf/201714006026