Roark's Elastic Stability Calculator

Table 15.1 — Elastic Stability of Bars, Rings, and Beams

What type of member?

Column / Bar

Buckling of straight bars, stepped columns, and tapered members

Cases 1–7 · Euler & tabulated

Ring / Arch

Buckling of circular rings and arches under radial pressure

Cases 8–10 · closed-form

Beam (Lateral Buckling)

Lateral-torsional buckling of rectangular and I-section beams

Cases 11–16 · closed-form

Select configuration

Select end conditions

Input Parameters