The mesh file exporter could not resolve cyclic dependencies in overlapping contact regions error

- January 16, 2019 at 11:03 pm
  
  etrl
  Subscriber
  
  Any ideas on how to fix this error "The mesh file exporter could not resolve cyclic dependencies in overlapping contact regions. Please try to Repair Overlapping Contact Regions."
- January 17, 2019 at 10:59 am
  
  Aniket Chavan
  Ansys Employee
  
  Have you checked using the following tool by right clicking on connections?
- January 17, 2019 at 5:21 pm
  
  etrl
  Subscriber
  
  Yes I have, but is suppressing these regions a good idea?
- January 22, 2019 at 5:06 pm
  
  Aniket Chavan
  Ansys Employee
  
  No, suppressing all together is not a good idea. They just give you an idea where you have overlapping contacts. You should fix them before proceeding.
- February 3, 2019 at 4:47 pm
  
  etrl
  Subscriber
  
  How can I fix these overlapping contact regions?
- February 4, 2019 at 5:42 am
  
  seeta gunti
  Ansys Employee
  
  You can create multi body geometry so that contacts are not created at all.
  
  Regards,
  
  Seeta
- February 6, 2019 at 11:07 pm
  
  etrl
  Subscriber
  
  I do have a multi-body geometry. They are essentially PCBs stacked on top of one another. But how can I avoid this error ?
- February 8, 2019 at 10:50 am
  
  seeta gunti
  Ansys Employee
  
  Hello etrl,
  
  I hope the following youtubes will help you.
  
  https://www.youtube.com/watch?v=cafy2BZr2XM
  
  https://www.youtube.com/watch?v=N_6inDSsnjY
  
  Regards,
  
  Seeta
- February 8, 2019 at 10:53 am
  
  seeta gunti
  Ansys Employee
  
  Hello etrl,
  
  I hope the following youtubes will help you.
  
  https://www.youtube.com/watch?v=cafy2BZr2XM
  
  https://www.youtube.com/watch?v=N_6inDSsnjY
  
  Regards,
  
  Seeta
- February 8, 2019 at 10:55 am
  
  seeta gunti
  Ansys Employee
  
  Contact regions are said to be "overlapping" when the same entity is a member of more than one contact region or when multiple contact regions share the same geometry. Ansys fluent does not support overlapping contact regions. You need find the cyclic contact region and then suppress it.
  
  the following links explains how to repair mesh overlapping
  
  https://www.sharcnet.ca/Software/Ansys/16.2.3/en-us/help/wb_msh/msh_overlapping_contacts.html
  
  Regards,
  
  Seeta
- February 12, 2020 at 3:48 pm
  
  MrRed33
  Subscriber
  
  If you reached to this page, as I did before...
  
  Contact regions are said to be "overlapping" when the same entity is a member of more than one contact region or when multiple contact regions share the same geometry...
  
  The other way is to to segment contact faces (because every contact is between two face). you can do that by Boolean operations (imprint faces) in design modeler
- May 26, 2020 at 2:08 am
  
  BillPeng
  Subscriber
  
  Click on each connection and you will see the incorrect ones which need suppressing.
- February 1, 2021 at 9:56 am
  
  SKB40
  Subscriber
  
  I tried doing the boolean face imprint. Still it didn't work. Can you please help.n

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