R1 23.5[mm] "Punch radius"
R2 25[mm] "Die radius"
R3 4[mm] "Die shoulder"
L 60[mm] "Sheet length"
th 1[mm] "Sheet thickness"
w_sheet 30[mm] "Sheet width"
w_tools 50[mm] "Tools width"
para 0 "Punch displacement parameter"
punch_max 28.5 "Punch stroke"
K 550.4[MPa] "Hollomon hardening parameter"
n 0.223 "Strain hardening exponent"
sigma0 194[MPa] "Initial yield stress"
eps0 3e-2 "Smoothing function strain parameter"