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CURVILINEAR RANDOM FATIGUE CRACK GROWTH: EFFECTS OF OVERLOADS
Author(s) -
Trębicki J.,
Sobczyk K.
Publication year - 1996
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.1460-2695.1996.tb00973.x
Subject(s) - curvilinear coordinates , structural engineering , paris' law , fracture mechanics , deflection (physics) , stochastic process , materials science , crack closure , mathematics , engineering , geometry , physics , statistics , classical mechanics
— In the paper a previously proposed stochastic description for curvilinear fatigue crack growth is extended and adopted to the characterization of crack retardation due to overloads. The model has the form of a cumulative process with random elementary crack increments and random angles of the crack deflection. The basic statistical characteristics of the model‐process are related to fracture mechanics and to the parameters known from traditional experimental predictions.