@article{9f8de19e7b26442dab0c7b5da895f0e8,
title = "A review of non-destructive evaluation techniques for axial thermal stress and neutral temperature measurement in rail: Physical phenomena and performance assessment",
abstract = "Thermal buckling of continuous welded rail (CWR) has been a long-standing challenge for the railroad industry because of the high derailment rate and the associated social, economic, and environmental impacts it causes. Rail buckling is generally attributed to excessive thermally-induced axial compressive stress developed in the rail from high temperatures. Knowing the rail thermal stress or its rail neutral temperature (RNT) is critical for safe and efficient rail system operation. There has been great interest and much work on the development of nondestructive evaluation (NDE) techniques to estimate rail thermal stress and RNT in situ. This paper reviews the findings and conclusions from research about NDE approaches for estimating rail thermal stress or RNT, emphasizing the physical phenomena and performance interpretation related to each of the approaches. We identify the type of reference measurements each technique relies on and tabulate this information showing key assumptions, performance, and limitations for each technique.",
keywords = "CWR, NDE, RNT, Rail neutral temperature, Thermal buckling",
author = "Huang, \{Chi Luen\} and Yuning Wu and Xiangdong He and Marcus Dersch and Xuan Zhu and Popovics, \{John S.\}",
note = "The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:John Popovics reports financial support was provided by Federal Railroad Administration. John Popovics reports financial support was provided by National Academy of Sciences.This work was supported by the U.S. National Academy of Sciences Rail Safety IDEA program, project RS-41. The authors acknowledge and appreciate the input from IDEA program manager Dr. Basemera-Fitzpatrick. This effort is also funded in part by the Federal Railroad Association through contract 693JJ621C000025. The opinion expressed in this paper are solely of the authors, and the U.S. National Academy of Sciences, Engineering, and Medicine, The Federal Railroad Administration, and the U.S. Government do not necessarily concur with, endorse, or adopt the findings, conclusions, and recommendations either inferred or expressly stated in the paper. Finally, the authors would like to thank Professor Francesco Lanza di Scalea, Dr. Robert Wilson, Wesley Mui, Harold Harrison, and Andrew Kish for thoughtful discussions. This work was supported by the U.S. National Academy of Sciences Rail Safety IDEA program , project RS-41. The authors acknowledge and appreciate the input from IDEA program manager Dr. Basemera-Fitzpatrick. This effort is also funded in part by the Federal Railroad Association through contract 693JJ621C000025 . The opinion expressed in this paper are solely of the authors, and the U.S. National Academy of Sciences, Engineering, and Medicine, The Federal Railroad Administration , and the U.S. Government do not necessarily concur with, endorse, or adopt the findings, conclusions, and recommendations either inferred or expressly stated in the paper. Finally, the authors would like to thank Professor Francesco Lanza di Scalea, Dr. Robert Wilson, Wesley Mui, Harold Harrison, and Andrew Kish for thoughtful discussions.",
year = "2023",
month = jul,
doi = "10.1016/j.ndteint.2023.102832",
language = "English (US)",
volume = "137",
journal = "NDT and E International",
issn = "0963-8695",
publisher = "Elsevier Ltd",
}