# 7.6.17.23.15. Species_Level_Set_Growth

Syntax

  Solid Stress [{of} SpeciesName] = Species_Level_Set_Growth ()

Scope

  Aria Material

Summary

  A linear mechanical strain due to the expansion/contraction of the material due to changes in species concentration or species density changes. Growth only occurs in the direction of the level set normal.

Parameter | Value | Default
--- | --- | ---
{of} | {of | species | subindex} | –
SpeciesName | string | –