“…Experimental methods dedicated to biaxial compression tests are rare (Bhaskar et al, 2021). The most common approach, layer compression testing, makes use of cylindrical samples where 10 or more coin-shaped thin sheet samples are stacked on top of each other and uniaxial compressive loading is equivalent to biaxial in-plane deformation (Barlat et al, 1997;Bruschi et al, 2014).…”