second_order_bending_moment: Calculate the second order bending moment
In shadowboxingskills/civilR: Civil Engineering R package

Compute the second order bending moment, M_{E_d} [kN.m]. The maximum bending moment, including the bow imperfection and the second order effects, calculated as:

M_{E_d} = \frac{ N_{E_d} \, e_0 \, + \, {M_{E_d}}^I }{ 1 - \frac{N_{E_d}}{N_{cr,Y}} - \frac{N_{E_d}}{S_v} }

1	second_order_bending_moment(L, Ned, Sv, Ncr, DL, LL, AL)

`L`	Length of strut between restraints [m]
`Ned`	axial_compression_force [kN]
`Sv`	Shear stiffness for K-shape lacing [kN]
`Ncr`	Euler buckling load from check #2 global zz [kN]
`DL`	Dead load / self-weight of member [kN/m]
`LL`	Live load / imposed load [kN/m]
`AL`	Accidental Impact Load [kN/m]