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Section 8.8: Understanding the Solution Up Section 8.8: Understanding the Solution Subsection 8.8.2: Constraint enforcement

### 8.8.1 Mesh convergence

The solution calculated by FEBio only applies to the mesh for which it was solved. However, the “exact” solution must be independent of the mesh and therefore a mesh convergence study is almost always necessary to make sure the FEBio solution is close to this exact solution. In practice this means that a model must be run several times with an increasingly finer mesh to find out at which mesh density the FEBio solution no longer changes.
Section 8.8: Understanding the Solution Up Section 8.8: Understanding the Solution Subsection 8.8.2: Constraint enforcement