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SEGMENTED FITTING OF FATIGUE CRACK GROWTH DATA
Author(s) -
Shaw W. J. D.,
May I.
Publication year - 1983
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1983.tb00352.x
Subject(s) - paris' law , fracture (geology) , plot (graphics) , materials science , mode (computer interface) , structural engineering , line (geometry) , curve fitting , fracture mechanics , mathematics , statistics , geometry , crack closure , engineering , computer science , composite material , operating system
— Segmented fitting of fatigue crack growth rate data is shown to give a more accurate prediction of fatigue life with less statistical scatter than by a single fitting using the straight line of a Paris‐type plot. Changes in the slope of the log (d a /d N ) vs log Δ K data are seen to correlate well with changes in the mode and mechanism of fracture.