xfenrich

Mapdl.xfenrich(enrichmentid='', compname='', matid='', method='', radius='', snaptoler='', **kwargs)

Defines parameters associated with crack propagation using XFEM

APDL Command: XFENRICH

Parameters:

enrichmentid

An alphanumeric name assigned to identify the enrichment. The name can contain up to 32 characters and must begin with an alphabetic character. Alphabetic characters, numbers, and underscores are valid.

compname

Name of the element set component for which initial cracks are defined and possibly propagated.

matid

Material ID number referring to cohesive zone material behavior on the initial crack. If 0 or not specified, the initial crack is assumed to be free of cohesive zone behavior.

method

PHAN – Use phantom-node-based XFEM (default). SING – Use singularity-based XFEM.

radius

Radius defining the region around the crack tip encompassing the set of elements to be influenced by the crack-tip singularity effects. Default = 0.0. Used only in singularity-based XFEM.

snaptoler

Snap tolerance to snap the crack tip to the closest crack face along the extension direction. Default = 1.0E-6. Used only in singularity-based XFEM.

Notes

If MatID is specified, the cohesive zone behavior is described by the bilinear cohesive law.

This command is valid in PREP7 (/PREP7) only.