Experimental characterization and macro-modeling of mechanical strength of multi-sheets and multi-materials spot welds under pure and mixed modes I and IIRim Chtourou, Gregory Haugou, Nicolas Leconte, Bassem Zouari, Fahmi Chaari and Eric MarkiewiczEPJ Web of Conferences, 94 (2015) 01032DOI: https://doi.org/10.1051/epjconf/20159401032