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Notch‐Size Effect in fatigue of steel specimens – verification of some calculation methods
Author(s) -
Buch A.
Publication year - 1984
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.19840151004
Subject(s) - radius , tension (geology) , bending , structural engineering , materials science , compression (physics) , composite material , mechanics , physics , engineering , computer science , computer security
New, more accurate fatigue test results were used for verification of different calculation methods and for establishing a more reliable relationship between the notch factor and the notch radius. Scatter bands for the dependence of the notch sensitivity K F /K T on the notch radius were obtained for steel specimens with stress concentration factors K T ≤ 3.6, with particular consideration of test results for large component similar specimens with large notch radii. The scatter bands of test points were ploted separately for tempered and normalized steels but the rotating‐bending and tension‐compression test results were considered together. Their upper and lower boundaries were expressed analytically with a two‐parameter‐formula. This formula takes better into account the notch‐size effect than the formulas of Neuber, Peterson or Stieler.