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2024-12-09

Elastic Critical Load for Torsional Buckling

Elastic Critical Load for Torsional Buckling Ncr,T

Ncr,T = 1iM2 · π2 · E · IwLT2 + G · It
iM = iu2 + iv2 + uM2 + vM2

E

Modulus of elasticity

G

Shear modulus

Iw

Warping resistance

It

Torsion moment of inertia

iu, iv

Principal radii of gyration

uM, vM

Coordinates of the shear center in the principal axis system

LT

Torsional buckling length
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