Analysis on the Behavior of Nonpropagating Fatigue Cracks under Steep Stress Gradients
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-05
Country of Publication
Egypt
No. of Pages
7
Abstract EN
A mechanism for the formation of nonpropagating fatigue cracks ahead of a notch root is presented.
The stress gradients near the elongated notch root along with the propagation of short crack and the resulting nonpropagating crack lengths anpc are estimated.
The local stress which is higher than the unnotched material fatigue limit S0 initiates the crack from a notch root and local steep stress gradient as a very important element leads to the nonpropagating crack.
The value of anpc depends on the material properties, and specimen geometry as well as applied loading.
The characteristic size of the short crack a0 which depends on the material properties associates with the fatigue stress concentration factor Kf.
The estimated values of anpc are in fairly good agreement with the experimental values available.
American Psychological Association (APA)
Wu, Hao& Lu, Qiuying. 2014. Analysis on the Behavior of Nonpropagating Fatigue Cracks under Steep Stress Gradients. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1015694
Modern Language Association (MLA)
Wu, Hao& Lu, Qiuying. Analysis on the Behavior of Nonpropagating Fatigue Cracks under Steep Stress Gradients. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1015694
American Medical Association (AMA)
Wu, Hao& Lu, Qiuying. Analysis on the Behavior of Nonpropagating Fatigue Cracks under Steep Stress Gradients. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1015694
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1015694