Critical Bending Moment

Critical bending moment

M_{crit} = \frac{π \cdot \sqrt{E_{0.05} \cdot I_{Z} \cdot G_{0.05} \cdot I_{tor}}}{l_{ef}}

M_crit	Critical bending moment
E_0.05	5 % quantile of the modulus of elasticity
G_0.05	5 % quantile of the shear modulus
I_z	Second moment of the area about the weak axis
I_T	Torsional constant
l_ef	Equivalent member length

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