• pressure vessel steels crack driving force assessment using different models

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1394/01/01
    • تاریخ انتشار در تی پی بین: 1394/01/01
    • تعداد بازدید: 433
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     fracture behavior of two pressure vessel steels, 20mnmoni55 and 50crmo4, was numerically investigated in this work. the research was conducted using numerical models of single-edge notched bend (senb) and disk compact type (dct) specimens.j-integral, an important fracture mechanics parameter, was chosen as a criterion for the fracture behavior comparison of two mentioned steels. j-integral values were determined using newly developed numerical algorithm coupled with finite element (fe) analysis. numerically obtained j-integral values are presented as a measure of crack driving force versus crack growth size (δa) for a range of initial crack sizes (a/w = 0.25, 0.375, 0.5, 0.625). fracture behavior of two steels was investigated using numerical models of pressure vessels containing also inner axial crack of different sizes (a/t = 0.25, 0.375, 0.5, 0.625). although j-integral values cannot be transferred from specimens to real structures, results obtained on pressure vessels have proved useful in engineering assessment of fracture behavior of such structures.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها