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Generation of Hybrid Finite Element Mesh
Author(s) -
Lo S. H.,
Lau T. S.
Publication year - 1992
Publication title -
computer‐aided civil and infrastructure engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.773
H-Index - 82
eISSN - 1467-8667
pISSN - 1093-9687
DOI - 10.1111/j.1467-8667.1992.tb00433.x
Subject(s) - quadrilateral , polygon mesh , mesh generation , boundary (topology) , finite element method , domain (mathematical analysis) , square (algebra) , volume mesh , triangulation , representation (politics) , topology (electrical circuits) , computer science , geometry , planar , triangle mesh , mathematics , algorithm , mathematical analysis , structural engineering , engineering , combinatorics , computer graphics (images) , politics , political science , law
An algorithm is proposed for the generation of ‘hybrid’ finite element meshes composed of quadrilateral and triangular elements over any arbitrary planar domain. Although more complicated hybrid meshes are to be generated, the new meshing strategy does not require more input data than a correct representation of the domain boundary. Mesh generation is started by constructing as many square elements as possible in the interior part of the domain, leaving a relatively small region around the boundary which is to be tliscretized into triangular elements by standard triangulation procedures. As a result, only the quality of the triangular elements near the boundary will be affected by the irregularity of the domain. The extraction of the interior part and forming of square elements of an irregular domain will be discussed in detail. Examples of meshes generated over simply connected and multiconnected domains are given.