磁気異方性センサを用いた曲管の非破壊応力診断 : 面外曲げへの拡張 Nondestructive Evaluation of Stress in Bent Pipe by Magnetic Anisotropy Sensor : Out-of-Plane Bending

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抄録

A method is developed to nondestructively estimate stresses in bent pipes using a magnetic anisotropy sensor. The values measured by the magnetic method contain both stresses generated during manufacture and by external loads.Out-of-plane bending test and in-plane bending test using a mandrel elbow were performed. The values obtained by the magnetic method were regressed to Rodabaugh & George's theoretical equation for a bent pipe. From the regression curve obtained, it was possible to obtain the external moment that was purely applied to the bent pipe. The stress range where measurement is possible is smaller than that in a straight pipe, because the residual stress is greater than that of a straight pipe. If the theoretical stress calculation equation by Rodabaugh & George was used, it was possible to separate the residual stress from the stress produced by the external load, based on the magnetic method due to inplane bending and out-of-plane bending.

収録刊行物

  • 非破壊検査 = JOURNAL OF THE JAPANESE SOCIETY FOR NON-DESTRUCTIVE INSPECTION  

    非破壊検査 = JOURNAL OF THE JAPANESE SOCIETY FOR NON-DESTRUCTIVE INSPECTION 55(11), 580-587, 2006-11-01 

    The Japanese Society for Non-Destructive Inspection

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各種コード

  • NII論文ID(NAID)
    10018345196
  • NII書誌ID(NCID)
    AN00208370
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03675866
  • NDL 記事登録ID
    8561826
  • NDL 雑誌分類
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL 請求記号
    Z14-41
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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