Premium
THE SHORT CRACK PROBLEM
Author(s) -
MILLER K. J.
Publication year - 1982
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.1460-2695.1982.tb01250.x
Subject(s) - materials science , crack closure , fracture mechanics , structural engineering , fracture (geology) , crack growth resistance curve , paris' law , fatigue testing , stress intensity factor , upper and lower bounds , forensic engineering , composite material , engineering , mathematics , mathematical analysis
— The problem associated with short crack growth, defined as situations in which the intensity of the crack tip field is underestimated by linear elastic fracture mechanics analyses, is briefly reviewed. Two cases are identified, cracks growing in plastically strained materials, such as occurs in high strain fatigue studies and at notch roots, and small cracks growing in single grains as occurs close to the fatigue limit in plain specimens. Important mechanical and metallurgical features of short cracks are discussed with particular reference to the upper and lower bound definition of a short crack.