Polygon scaled boundary finite elements for crack propagation modelling

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A review of the scaled boundary finite element method for two-dimensional linear elastic fracture mechanics (2017, methodology): “Polygonal meshes are generated from Voronoi diagrams [105] or from a Delaunay triangulated mesh [104, 106].”
New perspectives on polygonal and polyhedral finite element methods (2014, unknown): “Along with the advances of barycentric coordinates in graphics, there has been a parallel development of barycentric finite element and boundary element methods on polygons and polyhedra [5, 39, 40, 41, 17, 42, 43, 44, 45, 46, 47, 48, 49, 50], with recent applications in fracture modeling [51, 52, 5”
Scaled boundary polygons with application to fracture analysis of functionally graded materials (2014, methodology): “A polygon mesh can be generated from Delaunay triangulation [7] or Voronoi diagrams [1].”
Virtual and smoothed finite elements: A connection and its application to polygonal/polyhedral finite element methods (2015, methodology): “[47] employed the scaled boundary FEM over arbitrary polygons for linear elasticity and linear elastic fracture mechanics, respectively.”
Crack propagation modelling in functionally graded materials using scaled boundary polygons (2015, methodology): “It is also worth noting that the accuracy of the stress intensity factors, is inaccurate when the scaling centre is close to the polygon boundary (Ooi et al. 2012).”