26 September 2018
As Peter suggested, you can get distance along the edge vs stress plot using Construction Geometry (Path).
If you want to have X-coordinate (and not distance along the edge) vs stress plot instead, you can create in the following way.
1. Create a Equivalent stress result along a path as Peter suggested
2. Create a User defined result along a path, with expression LOCX
3. Highlight both objects created above and create a Chart
4. In the created chart, change the X axis (under Chart Controls) from "Length" to this "User defined result" created in step 2 to get X-coordinate vs stress plot
You can also combine multiple Equivalent stress results (at multiple time points) into one chart.
Hope this helps.