Decomposition of Sch*inhardt polyhedrons is a bottleneck problem in automatic mesh generation based on advancing front method for three-dimensional domains.

• 基于推进波前法实现三维有限元网格自动生成中 ；在网格生成的最后阶段 ；不可避免地遇到Sch nhardt类型多面体 ；波前三角平面找不到相应顶点 ；从而导致有限元网格自动生成的失败 .