I'm trying to make a deep drawing model that contemplates a force on the blankholder and a sliding of the sheet under the same blankholder (a bit different from the 'die forming' model in the Comsol libraries).
I am experiencing a problem as depicted when the blank loses contact with blankholder(present as contact pair in 'Definitions' and as contact with friction in 'Phisics'(Solid Mechanics')).
In order to get around the problem I have thought to decompose the simulation in two parts while the punch is lowered of 40 mm with a predescribed displacement:1) blank in contact with blankholder
2) blank not in contact with blankholder (for the remaining punch-predescribed displacement)
in which case it would be convenient to use a STEP STUDY or DIFFERENT STUDY?
This looks really interesting. Is there any way you can upload the file, otherwise it is difficult to answer other than in broad terms.
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