/cm2 /kg/m /cm4 /cm3 /cm a s=r F M ex1=ex2 ey1=ey2 Ixy Wxy ixy 20 1.6 1.111 0.873 1 1 0.607 0.607 0.739 20 2 1.336 1.05 1 1 0.691 0.691 0.719 25 1.2 1.105 0.868 1.25 1.25 1.025 0.82 0.963 25 1.5 1.325 1.062 1.25 1.25 1.216 0.973 0.948 25 2 1.736 1.363 1.25 1.25 1.482 1.186 0.923 30 1.2 1.345 1.057 1.5 1.5 1.833 1.222 1.167 30 1.6 1.751 1.376 1.5 1.5 2.308 1.538 1.147 30 2 2.136 1.678 1.5 1.5 2.721