Graph load factor vs. displacement

You can use the following procedure to graph load factor vs. displacement in a SOL 401 post-buckling analysis.

1. Create a contour plot of displacement magnitude.

2. In the Results tab, in the Tools group, click Create Graph .

3. In the Graph dialog box, from the Type list, select Across Iterations.

4. In the Select Entities group, use the options to select the node for which you want to create the graph. In a post-buckling analysis that uses an arc-length method, the abscissa is divided into segments on the basis of solution step, and each successive solution step does not typically occur with a proportional increase in load factor. Because of this, as it is currently displayed, the graph may be misleading. If so, continue with the following steps.

5. To resolve disproportional increases in load factor, in the window that contains the graph, right-click and choose Hide Ordered Abscissa.The abscissa is divided into segments on the basis of load factor.

6. Right-click and choose Switch X- and Y-Axes.With the load factor plotted on the ordinate, you can identify the load factor at which buckling occurs. The corresponding buckling loads are the product of the loads at their maximum value and the load factor at buckling.

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Graph load factor vs. displacement, Simcenter 3D 2021.1 Series

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