Hello everyone,
I'm new to Code_Aster and would appreciate some advice on using DEFI_CONTACT.
I'm currently trying to simulate contact between a plate with a hole and a bolt using STAT_NON_LINE. My goal is to observe the displacement and stress distribution on both the bolt shaft and the area around the hole in the plate.
However, I'm encountering convergence issues when the bolt and hole are not perfectly matched in size. To work around this, I've tried using dummy elements and translating the bolt so that at least one point on the shaft touches the edge of the hole. Unfortunately, the results remain inconsistent, especially when I apply motion using FORCE_FACE.
Does anyone have suggestions on how to handle contact problems where an initial gap exists between the contacting surfaces?
