Objects coming into contact then stuck

- July 11, 2019 at 12:33 am
  
  abcdandy
  Subscriber
  
  I would like to model objects coming into contact then not being able to come apart, but slide relatively. Does a 'no separation' definition achieve this or does it have to be initially in contact?
- July 11, 2019 at 3:00 am
  
  peteroznewman
  Subscriber
  
  You might use the COMBIN40 element which has a Gap feature. A "lockup" feature may be selected with KEYOPT(1). This feature removes the gap opening capability once the gap has closed.
- July 11, 2019 at 8:03 am
  
  jj77
  Subscriber
  
  No separation does this.
  
  An example is shown below. Two blocks. One fixed and the top one falling onto it. If one has normal frictional contact then it will bounce of (see below)
  
  if no separation contact is used (instead of friction-less as above) then it sticks as shown below
- July 11, 2019 at 12:08 pm
  
  peteroznewman
  Subscriber
  
  Good to know!
- July 11, 2019 at 12:09 pm
  
  jj77
  Subscriber
  
  I learned something new also

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