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Radiation Effects on the Micromechanics of Fatigue Crack Initiation
NM. Ghoniem
TH. Lin
TD. Naughton
出版
ASTM International
, 1987
URL
http://books.google.com.hk/books?id=HE98zgEACAAJ&hl=&source=gbs_api
註釋
A micromechanical model is employed to investigate parameters that affect the rate of local plastic strain in and around persistent slip bands in cyclically loaded metals. The model utilizes a solution of the stress field in a semi-infinite elastic-plastic medium under generalized plane deformation. By following the evolution of the stress field, a natural gating mechanism is observed to produce regions of localized deformation. The regions of local deformation develop into extrusions and intrusions that are responsible for the formation of fatigue cracks.
