Modelling three‐dimensional piece‐wise homogeneous domains using the α‐shape‐based natural element method

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Exact imposition of essential boundary condition and material interface continuity in Galerkin‐based meshless methods (2017, background): “[27] also implemented the imposition of essential boundary conditions with high accuracy, where the boundary can be convex or concave.”
Meshfree and finite element nodal integration methods (2008, methodology): “One such measure is the alpha-shape criterion as per [16, 27] which uses a maximum allowable circumsphere to preclude connectivity at a point.”
Conforming polygonal finite elements (2004, background): “The advantages and potential benefits of using polygonal finite elements in computation are striking: greater flexibility (single algorithm suffices) in the meshing of arbitrary geometries such as those that arise in biomechanics [9, 10 ]; better accuracy in the numerical solution (higher-order app”