Low cycle fatigue data evaluation for a high-strength spring steel
SCIE
SCOPUS
- Title
- Low cycle fatigue data evaluation for a high-strength spring steel
- Authors
- Li, DM; Kim, KW; Lee, CS
- Date Issued
- 1997-09
- Publisher
- ELSEVIER SCI LTD
- Abstract
- In the present investigation, low cycle fatigue (LCF) behavior is studied using the cylindrical smooth specimens under strain-controlled fully-reversed pull-push conditions for a high-strength spring steel heat-treated to different strength levels. During strain cycling the steel exhibits continuous softening independent of the applied strain levels and heat-treatments. Under the circumstances the saturation of the plastic strain energy density per cycle proves to be a valid criterion to determine the stable hysteresis loops for the cyclic stress-strain (CSS) curve formation. The strain-life curve calculated on the basis of the CSS relationship is in good agreement with the experimental counterpart, indicating a fine consistency between data from the CSS approach and from the strain-life approach. Then the LCF properties are discussed with regard to their dependence on the heat-treatments or strength levels of the steel. (C) 1997 Elsevier Science Ltd.
- Keywords
- low cycle fatigue; high-strength steel; cyclic stress-strain correlation; strain-life correlation
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20907
- DOI
- 10.1016/S0142-1123(97)00074-1
- ISSN
- 0142-1123
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF FATIGUE, vol. 19, no. 8-9, page. 607 - 612, 1997-09
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- There are no files associated with this item.
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