NairnFEAMPM Icon

Hole Command

Holes, or regions with no MPM material points or no FEA elements, can be defined by using a series of Hole commands. Between the Hole command and the subsequent EndHole command, there can be any number of geometric shape commands that define the geometry of the hole. For 2D MPM or FEA, the structure is:

Hole
  (any number of 2D shape commands)
EndHole

For 3D MPM, the structure is:

Hole
  (any number of 3D shape commands)
EndHole

Within the Hole block can be any number of shape commands to define the geometry of the hole. If the geometry already has material points or elements with a defined material, they will be left in place. To define complete holes, the hole definitions should come before defining material point or element regions.