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. Author manuscript; available in PMC: 2019 Aug 1.
Published in final edited form as: Comput Methods Appl Mech Eng. 2018 Apr 9;337:549–597. doi: 10.1016/j.cma.2018.03.045

Figure 3.

Figure 3

Decomposition of a unit cube into six tetrahedrons with equal size. The cube is first split into two triangular prisms. Each prism is further divided into three tetrahedrons. The diameter of the tetrahedrons’ circumscribing sphere is 3 times the edge length of the cube. This decomposition allows one to create a structured tetrahedral mesh.