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This page is devoted to frequently asked questions (FAQ) related to buckling. |
Analysis
Why do my hand calculations not match linear-buckling results?
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The structural softening which occurs under lateral-load application may still be captured. However, nonlinear analysis must be run with P-Delta and Large Displacement effect. Lateral load may then be plotted against lateral displacement. Initially, this relationship will be linear, but then the structure will begin softening at a certain load. Response of a column with slight initial perturbation is shown in Figure 1:
Figure 1 - Nonlinear buckling evaluation
Reporting
How should internal forces and reactions be interpreted for buckling analysis?
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