EMPIRICAL CORRELATION FOR 3 STAGE FATIGUE-CRACK GROWTH AT MULTIPLE LOAD RATIO (R) LEVELS IN AMBIENT CONDITIONS

Authors
PACKIARAJ CC RAY SK MANNAN SL
Citation
Cc. Packiaraj et al., EMPIRICAL CORRELATION FOR 3 STAGE FATIGUE-CRACK GROWTH AT MULTIPLE LOAD RATIO (R) LEVELS IN AMBIENT CONDITIONS, Transactions of the Indian Institute of Metals, 49(4), 1996, pp. 551-559
Citations number
13
Categorie Soggetti
Metallurgy & Metallurigical Engineering
Journal title
Transactions of the Indian Institute of Metals
ISSN journal
09722815 → ACNP
Volume
49
Issue
4
Year of publication
1996
Pages
551 - 559
Database
ISI
SICI code
0972-2815(1996)49:4<551:ECF3SF>2.0.ZU;2-M
Abstract
For correlating ambient condition three stage fatigue crack growth (FC G) data generated at multiple load ratio (R) levels. a simplification of an FCG relation for single R-level (from literature) is proposed. T he simplification involves incorporating stipulated R-dependencies of some of the adjustable parameters in the FCG relation, and is aimed at improving the confidence in the adjustable parameter values determine d by least square fit. The proposed equation is reasonably successful for two test cases.