Meshing

Meshing

UPXO can generate Finite Element (FE) meshes directly from grain structures, both conformant and non-conformant to grain boundaries.

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Conformant Meshing

Grain boundary geometry conformant meshes align element edges with grain boundaries, essential for accurate FE simulations of grain-scale phenomena.

Key module: meshing/conformal_mesher2d.py, meshing/gsmesh2d.py

Optional dependency: pip install upxo[mesh] (installs pyvoro and tetgen)

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Non-Conformant Meshing

Non-conformant meshes use a regular grid overlay — faster to generate, suitable for phase-field and homogenisation approaches.

Key module: meshing/nonConformalMesher.py

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Output Formats

• VTK (.vtk, .vtu, .vti) — via pyvista
• Abaqus input (.inp) — via meshing/pxtalmesh_01.py
• Gmsh (.msh) — optional via gmsh

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Coming Soon

• Full 3D tetrahedral meshing workflow
• Periodic boundary condition mesh generation
• Direct export to commercial FE solvers