大形石油タンク隅角部浮き上がりの弾塑性大変形有限要素解析

• 吉田 聖一

書誌事項

タイトル別名

• Elastic-Plastic, Large Deformation Finite Element Analysis of Uplifted Shell-to-Annular Joint in a Large Aboveground Oil Storage Tank
• オオガタ セキユ タンク グウカクブ ウキアガリ ノ ダン ソセイ ダイヘンケイ ユウゲン ヨウソ カイセキ

抄録

Large aboveground oil storage tanks are unanchored and rest freely on flexible foundation. The shell-to-annular joint of unanchored oil storage tanks will uplift due to strong seismic excitation, and a large plastic strain occurs in this joint. This paper presents the elastic-plastic, large deformation behavior of the uplifted shell-to-annular joint using axisymmetric finite element analysis. In the analysis, the uplift behavior is assumed to be axisymmetric. The constitutive equation is based on the J₂ flow theory with the kinematic hardening rule. The updated Lagrangian approach is used for the formulation of large deformation. The strength of the shell-to-annular joint in a large tank with capacity 90, 000m³ is reported. While deformation, stress and strain of the joint at uplift are described, it verifies also about mesh division, relation between equivalent stress and equivalent plastic strain, and partial penetration welding.

収録刊行物

• 圧力技術

  圧力技術 53 (4), 164-178, 2015

  一般社団法人 日本高圧力技術協会

キーワード

• Aboveground Oil Storage Tank
• Shell-to-Annular Joint
• Uplift
• Axisymmetric FEA
• Elastic-Plastic Analysis
• Large Deformation

詳細情報

• CRID: 1390282679594380928
• NII論文ID: 130005095090
• NII書誌ID: AN00011762
• DOI: 10.11181/hpi.53.164
• ISSN: 13479598
• ISSN: 03870154
• NDL書誌ID: 026650387
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026650387
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可