Premium
Parametric study of oblique edge cracks under cyclic contact loading
Author(s) -
BEGHINI M.,
BERTINI L.,
FONTANARI V.
Publication year - 2005
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.1460-2695.2004.00860.x
Subject(s) - crack closure , materials science , crack tip opening displacement , superposition principle , cylinder , oblique case , enhanced data rates for gsm evolution , structural engineering , mechanics , parametric statistics , displacement (psychology) , stress intensity factor , stress (linguistics) , contact mechanics , composite material , fracture mechanics , geometry , mathematics , finite element method , engineering , mathematical analysis , physics , psychology , telecommunications , linguistics , philosophy , statistics , psychotherapist
The problem of a two‐dimensional elastic body, carrying an inclined edge crack and loaded by a cylinder rolling on the surface, is solved by the weight function method. The load induced by the cylinder on the cracked body was represented by the Hertzian pressure distribution, and the nominal stress distribution in the uncracked body was numerically evaluated by the superposition principle. The crack opening displacement components were obtained by an analytical Green's function. The partial crack closure was considered and the influence of the mutual forces between the crack faces included in the analysis, by which the effective stress intensity factors K I and K II could be evaluated. By considering different friction conditions between the crack surfaces and several crack inclinations, the evolutions of the effective K I and K II during typical loading cycles were analysed.