Hi,
I heard that Penetration is defined as the overlap of the material thickness of shell elements, while Intersection is defined as elements that actually pass completely through one another.
My model is as follows.




Thickness of the Solid component 'top' is 1T.
When I make 'bottom', I use 'translate -> duplicate-> z-direction -1'. (Thickness of each component is 1T.)
So I think there is no overlap between 2 solid components.
<?xml version="1.0" encoding="UTF-8"?>
But Penetration check tool detect penetrations.

<?xml version="1.0" encoding="UTF-8"?>
Why does it happen?
It means there is overlap between 2 components?
Thanks
<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>