**split_tetra

Description

This command splits a linear tetrahedral mesh into smaller tetrahedral elements. It consists of splitting all edges at the middle, and dividing all initial tetrahedral elements into 8 smaller ones.

Syntax

**split_tetra \(~\,\) [ *check_orientation ] \(~\,\) [ *check_mesh ] \(~\,\) [ *remove_orphan ] \(~\,\) [ *keep_old_nsets ] \(~\,\) [ *keep_old_nsets_start_with prefix1 … prefixN ]

*check_orientation

A flag to check the orientation of tetrahedral elements. The first face normal should be oriented “inside-bounds”.

*check_mesh

to check that the mesh contain only linear tetrahedral elements c3d4.

*remove_orphan

A flag to remove orphan nodes.

*keep_old_nsets

A flag to keep node sets in the new mesh.

*keep_old_nsets_start_with

A list of nset to keep, whose names start with the given prefixes.

Example

An example can be found in $Z7TEST/Mesher_test/INP/remesh_tetra_one.inp