34x
000748
2024-01-16

Formula 18

ψ = σ2σ1 =-253.1336.2 = -0.753

kσ = 7.81 - 6.29 · ψ  9.78 · ψ2 = 7.81 - 6.29 · (-0.753)  9.78 · (-0.753)2 =18.08