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Effect of mesh on load pattern

The finite element mesh regularity and intensity has an effect on the load pattern process. The following example best explains the process.

Load pattern for four-panel slab

To generate the maximum My at midspan you would use this load pattern.

Actual pattern areas for an irregular coarse mesh

The point load and some additional area load will be included in the pattern loading.

Actual pattern areas for an irregular fine mesh

With the finer mesh, the point load will not be included and there will be less additional area load in the pattern loading.

Actual pattern areas for a regular coarse mesh

This mesh generates a pattern loading with an area that closely resembles the load pattern.

Drawing design strips significantly improves the mesh. See Chapter 18, "Generating the Mesh" for more information on improving the mesh.

Note: The mesh becomes more regular if you generate or regenerate after design strips are drawn.

Parent topic: Load pattern filtering
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