フランジ付き六角ボルト締結体の座面応力分布の弾塑性FEM解析と永久変形量の推定（初期締付け時の場合）

• 両角 由貴夫

  トヨタ自動車（株）

• 奥村 雅彦

  トヨタ自動車（株）

• 沢 俊行

  広島大学大学院工学研究科

• 桑木 健吾

  広島大学大学院工学研究科

書誌事項

タイトル別名

• Elasto-Plastic FEM Stress Analyses of the Contact Stress Distributions at the Bearing Surfaces and an Estimation of Permanent Sets in Bolted Joints Using Hexagon Bolts with Flange (In the Case of Initial Clamping)

抄録

The contact stress distributions and permanent sets at the bearing surfaces in bolted joints in initial clamping state are analyzed using an elasto-plastic FEM when hexagon bolts with flange are used. It is seen that the effect of the flange slope angle and the flange thickness are substantial on both of them. It is found that the difference in the contact stress distributions is larger between elastic analyses and elasto-plastic analyses when the bolt preload is larger. In the experiments, aluminum alloy specimens were compressed by the bolts with flanges and the permanent sets were measured. The permanent sets obtained from FEM are in a fairly good agreement with the measured results. In addition, the equivalent length for the bolt with flange is proposed as 1.2d, where d is nominal bolt diameter.

収録刊行物

• 日本機械学会論文集Ａ編

  日本機械学会論文集Ａ編 77 (777), 722-725, 2011

  一般社団法人 日本機械学会

キーワード

• Hexagon Bolts with Flange
• Contact Stress
• Bearing Surface
• Bolted Joints
• Permanent Set
• Finite Element Method
• Elasto-Plasticity
• Contact Problem
• Fixing Element

詳細情報

• CRID: 1390282679455318144
• NII論文ID: 130000874056
• DOI: 10.1299/kikaia.77.722
• ISSN: 18848338
• ISSN: 03875008
• Web Site: http://www.jstage.jst.go.jp/article/kikaia/77/777/77_777_722/_pdf
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可