In Abaqus/Explicit contact mass scaling can be defined only in the All steps, and this contact mass
scaling definition is active for all subsequent steps.
Select the step in which the interaction will be created. contact
mass scaling can be created in any explicit step in which the
contact is alredy defined.
Select the Contact Mass Scaling (Explicit) type
of interaction, depending on the analysis steps being defined in
your model.
Click Continue to close the Create
Interaction dialog box.
The Edit Interaction dialog box appears.
Specify the Location (The Default is Element Mass Scaling)
If the location selected is Specified Surfaces, then select the surfaces to
include in contact mass scaling from the list of available sufaces.
Click the arrows in the middle of the dialog box to
transfer the surfaces to the list of surfaces that will be included in
the contact mass scaling.
Click OK to create the interaction and to close the
editor.