**extrude_shell#

Description#

The command **extrude_shell is used to extrude 3d shell elements into “Z-strat” solid elements.

Syntax#

The command has the following syntax:

**extrude_shell \(~\,\) [ *elset_name elset-name ] \(~\,\) [ *layered ] \(~\,\) [ *thickness thickness ]

*elset_name

indicates that the mesher should apply only to the elements in the given elset. The default behavior is to use ALL_ELEMENT for the elset.

*layered

is a flag setting that a layered geometry should be used (e.g. c3d12l or c3d16l instead of c3d12 and c3d16). The default is not layered.

*thickness

gives an uniform thickness thickness to the elements. Default value is taken arbitrarily as 0.1.

Example#

The following example extrudes a portion of the sphere shell (s3d4 elements) to c3d8 solid elements.

../../_images/extrude_shell1_8sphere.svg 
****mesher
 ***mesh
  **open eighth_sphere.geof
  **extrude_shell
   *thickness 1.
****return