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Experimental Study on Variable-Amplitude Fatigue of Welded Cross Plate-Hollow Sphere Joints in Grid Structures
Joint Authors
Chen, Yohchia Frank
Lei, Hong-gang
Jiao, Jin-Feng
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-21
Country of Publication
Egypt
No. of Pages
15
Abstract EN
The fatigue stress amplitude of the welded cross plate-hollow sphere joint (WCPHSJ) in a grid structure varies due to the random loading produced by suspending cranes.
A total of 14 specimens considering three different types of WCPHSJs were prepared and tested using a specially designed test rig.
Four typical loading conditions, “low-high,” “high-low,” “low-high-low,” and “high-low-high,” were first considered in the tests to investigate the fatigue behavior under variable load amplitudes, followed by metallographic analyses.
The experimental and metallographic analysis results provide a fundamental understanding on the fatigue fracture form and fatigue mechanism of WCPHSJs.
Based on the available data from constant-amplitude fatigue tests, the variable-amplitude fatigue life of the three types of WCPHSJs was estimated using the Miner rule and Corten-Dolan theory.
Since both accumulative damage theories yield virtually same damaging results, the Miner rule is hence suggested to estimate the fatigue life of WCPHSJs.
American Psychological Association (APA)
Jiao, Jin-Feng& Lei, Hong-gang& Chen, Yohchia Frank. 2018. Experimental Study on Variable-Amplitude Fatigue of Welded Cross Plate-Hollow Sphere Joints in Grid Structures. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1122020
Modern Language Association (MLA)
Jiao, Jin-Feng…[et al.]. Experimental Study on Variable-Amplitude Fatigue of Welded Cross Plate-Hollow Sphere Joints in Grid Structures. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1122020
American Medical Association (AMA)
Jiao, Jin-Feng& Lei, Hong-gang& Chen, Yohchia Frank. Experimental Study on Variable-Amplitude Fatigue of Welded Cross Plate-Hollow Sphere Joints in Grid Structures. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1122020
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122020