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Combined Delaunay triangulation and adaptive finite element method for crack growth analysis

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Abstract

The paper presents the utilization of the adaptive Delaunay triangulation in the finite element modeling of two dimensional crack propagation problems, including detailed description of the proposed procedure which consists of the Delaunay triangulation algorithm and an adaptive remeshing technique. The adaptive remeshing technique generates small elements around crack tips and large elements in the other regions. The resulting stress intensity factors and simulated crack propagation behavior are used to evaluate the effectiveness of the procedure. Three sample problems of a center cracked plate, a single edge cracked plate and a compact tension specimen, are simulated and their results assessed.

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Authors and Affiliations

  1. Mechanical Engineering Department, Chulalongkorn University, 10330, Bangkok, Thailand

    Pramote Dechaumphai, Sutthisak Phongthanapanich & Thanawat Sricharoenchai

Authors
  1. Pramote Dechaumphai
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  2. Sutthisak Phongthanapanich
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  3. Thanawat Sricharoenchai
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The project supported by the Thailand Research Fund (TFR)

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Dechaumphai, P., Phongthanapanich, S. & Sricharoenchai, T. Combined Delaunay triangulation and adaptive finite element method for crack growth analysis. Acta Mech Sinica 19, 162–171 (2003). https://doi.org/10.1007/BF02487678

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  • DOI: https://doi.org/10.1007/BF02487678

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