![]() ![]() However, the ability to locally and conformally refine or coarsen all quadrilateral and all hexahedral meshes presents many difficulties. The algorithms available to refine and coarsen triangular and tetrahedral meshes are very robust and efficient. ![]() Adapting a mesh requires the ability to both refine and/or coarsen the mesh. The efficiency of such models is often dependent upon the ability to adapt a mesh to the physics of the phenomena. High fidelity finite element modeling of continuum mechanics problems often requires using all quadrilateral or all hexahedral meshes. As a result, a high quality mesh for an arbitrary geometry may be generated with a technique that is robust and fast for complex geometric regions and extreme mesh gradations.Ī methodology for quadrilateral finite element mesh coarsening Also, an exterior permanent boundary and an interior permanent boundary for a geometric region may be input and the rows are iteratively layered inward from the exterior boundary in a first counter clockwise direction while the rows are iteratively layered from the interior permanent boundary toward the exterior of the region in a second clockwise direction. A permanent boundary of the geometric region is input and rows are iteratively layered toward the interior of the geometric region. The generated mesh of all quadrilateral elements is boundary sensitive, orientation insensitive and has few irregular nodes on the boundary. The automated quadrilateral surface discretization method and apparatus automatically generates a mesh of all quadrilateral elements which is particularly useful in finite element analysis. The node pairs along the path are then merged to collapse the path.Īutomated quadrilateral surface discretization method and apparatus usable to generate mesh in a finite element analysis systemĪn automatic quadrilateral surface discretization method and apparatus is provided for automatically discretizing a geometric region without decomposing the region. Node pairs along opposite sides of the path are identified. Quadrilateral elements along a path through the coarsening region are removed. These techniques include identifying a coarsening region within the quadrilateral mesh to be coarsened. Techniques for coarsening a quadrilateral mesh are described. Staten, Matthew L Dewey, Mark W Benzley, Steven E Quadrilateral finite element mesh coarsening
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