ANALYSIS OF CRACK INITIATION AND PROPAGATION IN FRETTING FATIGUE - THE EFFECTIVE INITIAL FLAW SIZE METHODOLOGY

Authors
FELLOWS LJ NOWELL D HILLS DA
Citation
Lj. Fellows et al., ANALYSIS OF CRACK INITIATION AND PROPAGATION IN FRETTING FATIGUE - THE EFFECTIVE INITIAL FLAW SIZE METHODOLOGY, Fatigue & fracture of engineering materials & structures, 20(1), 1997, pp. 61-70
Citations number
15
Categorie Soggetti
Material Science","Engineering, Mechanical
Journal title
Fatigue & fracture of engineering materials & structures → ACNP
ISSN journal
8756758X
Volume
20
Issue
1
Year of publication
1997
Pages
61 - 70
Database
ISI
SICI code
8756-758X(1997)20:1<61:AOCIAP>2.0.ZU;2-N
Abstract
A number of fretting fatigue tests were carried out on CMV steel and I NCO 718 alloys under closely controlled experimental conditions. A fra cture mechanics-based lifing model was developed and the Paris Law emp loyed to predict fatigue lives under a range of experimental condition s. An effective initial flaw size was used to describe initiation and early propagation of cracks. This approach was found to give good pred ictions of fatigue life of specimens for different values of bulk stre ss under the same fretting load.