The first FLD can look like someone scattered points across a graph and left you to interpret them. The useful part is that those points belong to locations on the sheet. We can select them and see where they came from.
Open a computed forming state and keep both the FLD and the 3D blank visible.
What does the diagram show?
In a strain-based FLD, minor strain is on the horizontal axis and major strain on the vertical axis. The forming limit curve, or FLC, provides the reference for the selected assessment.
Check which material curve is being used and which shell fiber is selected. These choices affect what you are looking at, so keep them with any image you share.
Read the labels, not just the colours
Zones by FLC groups values relative to the selected curves. Zones by Quality uses categories such as cracks, insufficient stretching and wrinkling tendency. Rupture risk describes position relative to the reference curve.
The palette can be customised. The colour you remember from another tutorial might mean something different in this view.
Find the dots on the blank
Click in the FLD window, then select a point or drag a box around a group. Find the highlighted elements in the 3D view.
If they are difficult to see, hide unselected entities and fit the selection. Then bring back the surrounding sheet and tools so you know which region you are investigating.
Look at its mesh and thickness. The diagram describes a calculated assessment; it is not evidence that a physical part has already cracked.
How did the point get there?
Use Strain Path for the element and fiber. It follows the available states, which is more informative than looking only at the final dot. We will cover that in the curves post.
For your tutorial image, put the diagram beside the highlighted sheet region. Now the reader can make the same connection you just made.
Previous: Read Thickness and Thinning Results in PAM-STAMP 2025
Next: Investigate Wrinkling and Contact in PAM-STAMP 2025
[…] make one reasoned change. Recompute from the affected point, then compare the shape, thickness and FLD assessment at equivalent states and […]