The Boundary Conditions ( BC ) sub-menu contains the following options:

• Create.
• Edit.
• Duplicate.
• Propagate.
• Hide/Show.
• Delete.

The following boundary condition types and settings are available:

Fixed #

• Name.
• Region.
• Color.

Displacement/Rotation #

• Name.
• Region.
• DOF:
  • * U1 – translation in X axis.
  • * U2 – translation in Y axis.
  • * U3 – translation in Z axis.
  • * UR1 – rotation about X axis.
  • * UR2 – rotation about Y axis.
  • * UR3 – rotation about Z axis.
• Amplitude.
• Coordinate system – Global or user-defined one.
• Color.

Submodel #

• Name.
• Step number – global model step number from which to read the displacements.
• Region.
• DOF:
  • * U1 – translation in X axis.
  • * U2 – translation in Y axis.
  • * U3 – translation in Z axis.
  • * UR1 – rotation about X axis.
  • * UR2 – rotation about Y axis.
  • * UR3 – rotation about Z axis.
• Color.

Temperature #

• Name.
• Region.
• Magnitude.
• Amplitude.
• Color.

Postscript #

Fixed boundary condition constrains all the available degrees of freedom (DOF). Displacement/rotation BC allows the user to select individual DOFs. The following options are available for each DOF:

• Unconstrained – no boundary condition imposed on this DOF.
• Fixed – freezes the deformation from the previous step or, if there is no previous step, sets it to zero.
• Value (length unit/angle unit) – a prescribed value of displacement (current length units for translational DOFs and radians for rotational ones).

Keep in mind that a Fixed option and a Value option cannot be used simultaneously for various DOFs in the same boundary condition.

In the case of a sub-model boundary condition, each DOF has the following two options: Unconstrained and From global model.