SINGULAR MAPPING FUNCTION FOR STRESS CONCENTRATION

  • HAYASHI Masa
    社団法人 土木学会 長岡技術科学大学
  • WATANABE Chikara
    社団法人 土木学会 函館工業高等専門学校 環境都市工学科
  • SAITOH Michio
    社団法人 土木学会 川田テクノシステム株式会社 設計部

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Other Title
  • 応力集中問題に対する特異写像関数
  • オウリョク シュウチュウ モンダイ ニ タイスル トクイ シャゾウ カンスウ

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Description

An efficient and highly accurate method by using hierarchical finite elements is presented for the analysis of local stresses that are caused by the stress concentration in the vicinity of singular points. Singular elements are used to prevent the deterioration of convergence of the solution in the case of having singular points. In this study, hierarchical curved elements with many singular points are developed by using singular mapping functions. The accuracy and availability of these elements are demonstrated by numerical examples.

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