Before revision: Retrieved from URL Johnson Parabola Eulers formula for buckling of a slender column gives the critical stress level to cause buckling but does consider material failure modes such as yield which has been shown to lower the critical buckling stress.
After revision: Retrieved from URL Johnson Parabola Eulers formula for buckling of a slender column gives the critical stress level to cause buckling but doesn't consider material failure modes such as yield which has been shown to lower the critical buckling stress.