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Ansys Learning Forum Forums Discuss Simulation LS Dyna Pressure-dependant friction coefficient in Workbench LS-Dyna Reply To: Pressure-dependant friction coefficient in Workbench LS-Dyna

Chris Quan
Ansys Employee
Pressure-dependent frictional condition can be defined in WB LS-DYNA using Keyword Snippet.
You need to use WB LS-DYNA to create a frictional contact first. Then write the K file and copy the contact keyword to the Keyword Snippet. In the keyword snippet, FS needs to be set to 2.0 or -2.0. You also need to include *Define_Table or *Define_Friction to get the pressure-dependent coefficient of friction. See the instructions below from LS-DYNA K Manual.
Finally, you need to suppress the frictional contact in the WB LS-DYNA Tree Outline to avoid the duplicated definition of the same contact.




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