Hola Carlos, a mi me da distintos valores para el cálculo: (s) para sigma h=8.19mm Fd1w=1.1759 kPa >>> P*1;w=3.593 y k4=0.09678 h=9.03mm Fd1s=1.1738 kPa >>> P*1;s= 2.422 y k1=0.57191 h=6,63mm Fd2w=0.6241 kPa >>> P*2;w=4.437 y k4=0.09191 h=7.32mm Fd1s=0,6262 ...