Difference between revisions of "FEM ConstraintContact"

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=== CalculiX ===
 
=== CalculiX ===
#The contact stiffness should be 10 times the young's modulus of the material for hard contact. The higher the value for contact stiffness, the harder the contact between surfaces.
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* The contact stiffness should be 10 times the young's modulus of the material for hard contact. The higher the value for contact stiffness, the harder the contact between surfaces.
#The slave face is the face which penetrates into the master face, and therefore experiences more deformation.
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* The slave face is the face which penetrates into the master face, and therefore experiences more deformation.
#The *CONTACT PAIR card is used for modeling contact in CalculiX. The constraint uses Face-to-Face penalty contact and the contact formulation is explained in detail at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node112.html
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* The *CONTACT PAIR card is used for modeling contact in CalculiX. The constraint uses Face-to-Face penalty contact and the contact formulation is explained in detail at http://web.mit.edu/calculix_v2.7/CalculiX/ccx_2.7/doc/ccx/node112.html
 
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* Overview for different contact types: https://forum.freecadweb.org/viewtopic.php?f=18&t=15699&start=90#p188736
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* Further interesting informations:
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** https://forum.freecadweb.org/viewtopic.php?f=18&t=23102#p180709 and following posts !!!
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** https://forum.freecadweb.org/viewtopic.php?f=18&t=20276
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** https://forum.freecadweb.org/viewtopic.php?f=18&t=21331
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** https://forum.freecadweb.org/viewtopic.php?f=18&t=15699 (initial contact topic)
 
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Revision as of 05:54, 18 September 2018

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FEM ConstraintContact.png FEM ConstraintContact

Menu location
Model → Mechanical Constraints → Constraint contact
Workbenches
FEM
Default shortcut
Introduced in version
-
See also
FEM tutorial


Description

Creates a FEM constraint for contact between 2 surfaces.

How to use

  1. Click on FEM ConstraintContact.png or choose ModelMechanical ConstraintsFEM ConstraintContact.png Constraint contact from the top menu.
  2. Select the master face.
  3. Select the slave face.
  4. Enter a contact stiffness.
  5. Enter a friction coefficient.

Limitations

  1. The contact constraint can only be applied to two faces.

Notes

CalculiX