MATERIAL CHARACTERIZATION BY AN INNOVATIVE BIAXIAL SHEAR EXPERIMENT AT VERY LARGE STRAINS AND AT VERY HIGH STRAIN RATES C. ALBERTINI, L.J. GRIFFITHS, M. MONTAGNANI, A. RODIS, P. MARIOTTI, A. PALUFFI et G. PAZIENZA J. Phys. IV France, 01 C3 (1991) C3-435-C3-440 DOI: 10.1051/jp4:1991361