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A RELIABILITY ANALYSIS OF FATIGUE CRACK GROWTH UNDER RANDOM LOADING
Author(s) -
Huang X.,
Hancock J. W.
Publication year - 1989
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.1460-2695.1989.tb00531.x
Subject(s) - monte carlo method , reliability (semiconductor) , fracture mechanics , structural engineering , paris' law , materials science , fracture (geology) , fatigue testing , structural reliability , mechanics , engineering , crack closure , mathematics , statistics , composite material , physics , thermodynamics , power (physics) , probabilistic logic
— The fracture mechanics approach to the growth of fatigue cracks under random loading has been used to predict both the distribution of crack lengths after a given number of cycles, and the distribution of cycles to grow a crack to a given length. The analysis ignores interaction effects between cycles, and its predictions agree closely with the results of Monte‐Carlo simulations. These results allow a simple method of assessing the reliability of cracked components subjected to narrow or broad band random loading and the introduction of material variability allows a quantitative description of the parameters which affect the reliability of a structural component.