NDLI: A Study on Effect of Residual Stress on Crack Growth of Aluminum Plate

Content Provider	IEEE Xplore Digital Library
Author	Joo-Sung Lee Nguyen Tan Hoi
Copyright Year	2006
Description	Author affiliation: Sch. of Naval Archit. & Ocean Eng., Ulsan Univ. (Joo-Sung Lee; Nguyen Tan Hoi)
Abstract	One technique used to enhance the fatigue strength of a fastener hole is to introduce a compressive residual stress field around the hole. An applied load must overcome this residual stress before the crack can grow, thus leading to a longer fatigue life. The cold expansion of the holes is largely employed to obtain improvement in fatigue performance of structures with initially uncracked holes. In this research, considered is a fatigue crack growth from a hole under the influence of residual stress. The entire cold working processing- including hole expansion, elastic recovery, and finish reaming of two aluminum alloys 2024-T351 and 7075-T6 is simulated. This method of fatigue life prediction is compared with a superposition technique and experimental data. The crack closure level is computed from a finite element simulation and a fatigue life is predicted. The conclusions obtained here are beneficial to the understanding of the phenomenon of fatigue crack initiation and growth at the perimeter of cold worked holes.
Starting Page	369
Ending Page	373
File Size	4413609
Page Count	5
File Format	PDF
ISBN	1424404266
DOI	10.1109/IFOST.2006.312335
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-18
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantum computing Computational modeling Oceans Elastic recovery Fasteners Fatigue Aluminum alloys Residual stresses Finite element methods Testing
Content Type	Text
Resource Type	Article

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