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ON DIMENSIONAL ANALYSIS OF FATIGUE CRACK GROWTH RATE AND GEOMETRICAL SIMILITUDE OF CRACKS
Author(s) -
Navarro A.,
Rios E. R. de los
Publication year - 1987
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.1460-2695.1987.tb00463.x
Subject(s) - similitude , structural engineering , paris' law , materials science , similarity (geometry) , fatigue testing , crack closure , forensic engineering , fracture mechanics , engineering , computer science , artificial intelligence , image (mathematics)
Dimensional analysis has been applied to the fatigue failure of a material. The growth rate of cracks propagating within the limitations of LEFM can be described unequivocably by Δ K , as for example, in the Paris law. However, in the more general case, when LEFM conditions are violated or when the crack is short, an extra term, relating plastic zone size to crack length, is needed to preserve the physical similarity.