Failure Analysis of a Temporary Power Line Anchor
During the installation of power transmission lines across a major interstate highway, a temporary anchor stabilizing one of the poles failed, resulting in the loss of the pole and the associated power lines. It also contributed to a single vehicle incident on the adjacent roadway. Post-failure analysis revealed that the fracture was precipitated by a preexisting weld-related crack. Closed form and numerical stress analyses were also conducted, with the results indicating that the anchor was installed properly within the parameters intended by the manufacturer.
M.E. Stevenson, M.E. Barkey, J.L. McDougall, E.R. Weishaupt, Failure Analysis of a Temporary Power Line Anchor, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019, p 101–106, https://doi.org/10.31399/asm.fach.v03.c9001766
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