U

Figure 6.4: Examples of distortional buckling modes

Figure 6.5: Elastic critical buckling stresses for various failure modes

Wavelength ^

Figure 6.5: Elastic critical buckling stresses for various failure modes

(3) For elements with edge or intermediate stiffeners as indicated in figure 6.4(d), no further allowance need be made for distortional buckling if the effective area of the stiffener is reduced as specified in 4.3.

6.5 Bending and axial compression 6.5.1 General

(1)P All members subject to combined bending and axial compression shall satisfy the criterion:

_ + *y(My,Sd f AMy,Sd) + "z(Mz,Sd + AMz,Sd) < j Xmin/yb^eff /yb^eff.y.com '^Ml /yb^eff,z,com

where:

1eff

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