Context:
To open the Interference Fit Options dialog box, click Interference Fit in the Abaqus/Standard interaction editor (see Defining surface-to-surface contact in an Abaqus/Standard analysis” above for details).
-
In the Interference Fit Options dialog box, select
Gradually remove secondary node overclosure during the
step to prescribe allowable intereferences.
- Select one of the following options:
-
Select Automatic shrink fit (first general analysis step only) if you want
Abaqus/Standard to assign a different allowable interference to each secondary
node that is equal to that node's initial penetration. If you select
this option, skip to Step 6.
-
Select Uniform allowable interference to specify a single allowable
interference that will be applied to every secondary node.
- Click the arrow to the right of the Amplitude field to select the name of an amplitude curve that defines the magnitude of the prescribed interference during the step. Alternatively, you can select (Ramp) to apply the prescribed interference immediately at the beginning of the step and ramp it down to zero linearly over the step.
If necessary, you can click to define a new amplitude curve. For more information, see Selecting an amplitude type to define.
- In the Magnitude at start of step field, enter the magnitude of the allowable interference at the start of the step.
-
If desired, select the Interference Direction option
Along direction to specify a shift direction vector.
The relative shift is applied to the secondary nodes before Abaqus/Standard determines the contact conditions. If you select this option, enter the
following:
-
In the X field, enter the
X-direction cosine of the shift direction
vector.
-
In the Y field, enter the
Y-direction cosine of the shift direction
vector.
-
In the Z field, enter the
Z-direction cosine of the shift direction
vector.
- Click OK to save the interference fit options that you have specified and to return to the Edit Interaction dialog box.