Hi all, I'm new here and I have a pretty basic question. I'm designing a press-fit assembly, and need to find out the specific geometric requirements to ensure a high enough pull-out resistance. I'm pressing a thin-walled (0.4mm) cylindrical metal part over a cylindrical plastic part. The diameters are about 20mm. Are there approximate methods I can use to get pull-out force values for a given amount of interference? Going one step further, is there a way to calculate pull-out force if the plastic part has crush ribs?