Previous studies have assessed the fracture mechanisms of broken wires removed from the main suspension cables on the Forth Road Bridge in Scotland during an intrusive inspection performed in 2012. It was concluded that the fracture process exhibited evidence of several fracture mechanisms, and in some cases a combination of mechanisms was possible. It was shown that possible mechanisms related to crack initiation and propagation, and included pitting corrosion, hydrogen-assisted cracking, branched cracking and corrosion fatigue. Tensile test data and preliminary fatigue data were also discussed. However, the exact effect of fatigue acting on single strands still remains unclear. The current study provides detailed fatigue data and fracture mechanism analysis along with test results from galvanic coating integrity tests and compares the fracture mechanism to those identified in situ.
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May 2014
Research Article|
January 27 2014
Fatigue testing of wires from the Forth Road Bridge, Scotland
Paul Roffey, BSc, PhD, CEng, MIMMM;
Paul Roffey, BSc, PhD, CEng, MIMMM
Chartered Forensic Engineer, Forensic Engineering and Materials, ESR Technology, Warrington, Cheshire, UK
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Eirwyn Huw Davies, BSc, CEng, FIMMM;
Eirwyn Huw Davies, BSc, CEng, FIMMM
Principal Metallurgist, Forensic Engineering and Materials, ESR Technology, Warrington, Cheshire, UK
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Timothy Lloyd Ashton Gould, BSc
Timothy Lloyd Ashton Gould, BSc
Assistant Engineer, Forensic Engineering and Materials, ESR Technology, Warrington, Cheshire, UK
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Publisher: Emerald Publishing
Received:
June 28 2013
Accepted:
October 03 2013
Online ISSN: 2043-9911
Print ISSN: 2043-9903
ICE Publishing: All rights reserved
2014
Proceedings of the Institution of Civil Engineers - Forensic Engineering (2014) 167 (2): 79–87.
Article history
Received:
June 28 2013
Accepted:
October 03 2013
Citation
Roffey P, Davies EH, Gould TLA (2014), "Fatigue testing of wires from the Forth Road Bridge, Scotland". Proceedings of the Institution of Civil Engineers - Forensic Engineering, Vol. 167 No. 2 pp. 79–87, doi: https://doi.org/10.1680/feng.13.00017
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