両側加熱法の施工条件とその管理方法　管突合せ溶接継手の残留応力制御方法　（第２報）

DOI

書誌事項

タイトル別名
  • Conditions of Both Side Heating Method and Its Control Procedure. Development of Stress Control Method for Pipe Batt Weld Joint. (2).
  • Development of Stress Control Method for Pipe Batt Weld Joint (2)
  • 管突合せ溶接継手の残留応力制御方法(第2報)

抄録

Both side heating method which is proposed by authors in previous report is the effective stress control method for pipe butt weld joint. Non-dimensional parameters that control the effect of this method, and conditions which should be satisfied to get sufficient effect in actual application are clarified in this paper. Followings are the rusults which are made clear in this paper.<BR>(1) The parameters which control effect of both side heating are βl, βW and K (=σ/EαT). Where β, l and W are size parameter (β4=3(1-υ2)/r2t2), distance from weld center line and width of heating region, and r, t, σ, E, υ, a and T are radius of pipe, thickness, stress at joint region, Young's modulus, Poisson ratio, thermal expansion coefficient, and temperature difference. The relation between parameters βl, βW and non-dimensional stress K are figured out, and this relation shows the combination of parameter range which control the residual stress at weld inside to compression state. These parameters and the combination of their ranges are verified by FEM analysis.<BR>(2) The locations of temperature measurement and the conditions of temperature at each location which should be satisfied to get sufficient effect in actual application are proposed. These conditions for actual application are verified through experiment of both side heating on two size of stainless steel pipe weld joints based on the proposed condition.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001204723633024
  • NII論文ID
    130003764523
  • DOI
    10.2207/qjjws.14.570
  • ISSN
    24348252
    02884771
  • 本文言語コード
    ja
  • 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

問題の指摘

ページトップへ