シングルデッキ形浮屋根デッキ板の重ね継手部の疲労き裂進展解析

• 吉田 聖一

  横浜国立大学

• 白鳥 正樹

  横浜国立大学

• 関根 和喜

  横浜国立大学

• 土田 智彦

  (独) 石油天然ガス•金属鉱物資源機構

• 岩田 克己

  (独) 石油天然ガス•金属鉱物資源機構

書誌事項

タイトル別名

• Fatigue Crack Growth Analysis of Lap Joints in Deck Plates of Single-Deck Floating Roofs
• シングルデッキケイ ウキヤネ デッキバン ノ カサネ ツギテブ ノ ヒロウ キレツ シンテン カイセキ

抄録

The single-deck floating roofs are used in large aboveground oil storage tanks. The deck plates of the roofs have 4. 5mm in thickness and are joined by continuous full-fillet welds on the upper side of lap plates. The deck plates are subjected to cyclic bending deformation due to wind load. This may lead to fatigue cracks at the lap welded joints. The cracks continue to grow in long time period. The oil will be spilled on the welded joints of the deck plates when the cracks penetrate. In this paper, the crack growth of the surface cracks in the lap joints is described. The stress intensity factors are analyzed using the Influence Function Method established by Shiratori, and the crack growth is based on the Paris law. The stress analysis of the virtual cracked surface in the uncracked lap welded joint is performed by the plane strain elastic FEA. The relations between the load amplitude and the fatigue life of crack penetration are obtained.

収録刊行物

• 圧力技術

  圧力技術 49 (1), 4-11, 2011

  一般社団法人 日本高圧力技術協会

キーワード

• Surface Crack
• Crack Growth
• Stress Intensity Factor
• Influence Function Method
• FEA
• Floating Roof
• Lap Joint

詳細情報

• CRID: 1390282679593178368
• NII論文ID: 130004446877
• NII論文ID: 10027844952
• NII書誌ID: AN00011762
• DOI: 10.11181/hpi.49.4
• ISSN: 13479598
• ISSN: 03870154
• NDL書誌ID: 10998095
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10998095
• 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