二軸応力場に着目したエルボ配管の低サイクル疲労寿命評価 Estimation of low cycle fatigue life of elbows considering bi-axial stress effect

この論文にアクセスする

この論文をさがす

著者

抄録

Elbow pipes are commonly used in the piping systems of power plants and chemical plants. The stress states at elbow part are complex and quite different from those of the straight pipes. It is well known that the fatigue lives of metals under simple push-pull conditions were successfully predicted by the Manson's universal slope method. However, it have been pointed out by the several researchers that the low cycle fatigue lives of elbows under combined cyclic bending and inner pressure could not be predicted by the Manson's universal slope method. However, the reasons for this are not made clear. In this work, the low cycle fatigue tests and the finite element analysis of elbows under cyclic bending and inner pressures were carried out. It was found that the bi-axial stress ratio, which is a ratio of hoop stress and axial stress, at elbows are quite high. Considering the bi-axial stress ratio, the revised Manson's universal slope method was proposed in this paper. It was shown that the low cycle fatigue lives of elbows under combined cyclic bending and inner pressure were predicted conservatively by the proposed method.

収録刊行物

  • 圧力技術 = Pressure engineering : journal of Japan High Pressure Institute

    圧力技術 = Pressure engineering : journal of Japan High Pressure Institute 50(4), 184-193, 2012-07-25

    一般社団法人 日本高圧力技術協会

参考文献:  16件中 1-16件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10030955832
  • NII書誌ID(NCID)
    AN00011762
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03870154
  • NDL 記事登録ID
    023914812
  • NDL 請求記号
    Z17-750
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ