• on the analysis of the causes of cracking in a wind tower

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 618
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
      this paper presents an analysis of the cracking causes in a wind tower of a wind farm. the cracks were detected in several towers of the farm, in the welded joint between the lower ring of the towers and the flange connecting the towers to their corresponding foundation. in the extreme case, here analysed, the crack was a through thickness crack. in order to clarify the cracking causes, the component was inspected in situ, non-destructive tests were performed on the base material, the weld bead and the heat affected zone (haz), and a finite elements (fe) simulation was carried out to determine the stress state in the welded joints and to develop the corresponding fatigue analysis following the fatigue module (chapter 7) of the fitnet ffs procedure.

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