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Adaptation of quadtree meshes in the scaled boundary finite element method for crack propagation modelling
E.T. Ooi, H. Man, , C. Song
Published in Elsevier Ltd
2015
Volume: 144
   
Pages: 101 - 117
Abstract
A crack propagation modelling technique combining the scaled boundary finite element method and quadtree meshes is developed. This technique automatically satisfies the compatibility requirement between adjacent quadtree cells irrespective of the presence of hanging nodes. The quadtree structure facilitates efficient data storage and rapid computations. Only a single cell is required to accurately model the stress field near crack tips. Crack growth is modelled by splitting the cells in the mesh into two. The resulting polygons are directly modelled by the scaled boundary formulation with minimal changes to the mesh. Four numerical examples demonstrate the salient features of the technique. © 2015.
About the journal
JournalData powered by TypesetEngineering Fracture Mechanics
PublisherData powered by TypesetElsevier Ltd
ISSN00137944
Open AccessYes
Concepts (15)
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    Crack propagation
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    Crack tips
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    Cracks
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    Digital storage
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    Fracture
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    Numerical methods
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    HANGING NODES
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    Modelling techniques
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    QUAD TREES
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    QUADTREE STRUCTURE
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    Salient features
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    SCALED BOUNDARY FINITE ELEMENT METHOD
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    Single cells
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    Stress field
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    Finite element method