contact between two perpendicular shell plates

- March 17, 2024 at 9:05 am
  
  gangolu
  Subscriber
  
  Hi,
  I am using shell elements for an I section and applying blast loading on its weak axis. I couldnt able to establish proper contact between flange and web. Any suggestions which contact is more suitable! I tried merging nodes but couldnt achieve good results
- March 18, 2024 at 4:47 pm
  
  Jim Day
  Ansys Employee
  
  I suggest that flange and web share nodes at their juncture even though it means there's some slight overlap of material at that juncture. *CONTACT_AUTOMATIC_SINGLE_SURFACE would only be needed if deformation were extremely large, such as would occur if the section buckled.
  If that doesn't help, provide an image that illustrates the bad behavior.