IDEAS home Printed from https://ideas.repec.org/a/taf/tjrtxx/v12y2024i5p944-957.html
   My bibliography  Save this article

Numerical simulation and mechanism analysis of thermal fatigue crack for low-alloy steel brake disc of high-speed train

Author

Listed:
  • Jinnan Wang
  • Muhammad Qasim Zafar
  • Yunbo Chen
  • Lingli Zuo
  • Xiangjun Zhang
  • Pu Xie
  • Haiyan Zhao

Abstract

High-speed train brake discs face severe service conditions and subsequently risk of material failure during emergency braking. Thermal fatigue cracking is a major concern leading to catastrophic disc failure and is regarded as a primary service bottleneck in rapid rail transportation. Our proposed work establishes a numerical prediction model to estimate thermal fatigue crack initiation and propagation in low-alloy steel. We used a modified Cockcroft-Latham criterion and material property tests to determine the critical crack initiation value. Through numerical simulations and in-situ experiments, we observed plastic deformation at the median temperature of the thermal fatigue cycle and found that tailored material composition improves brake disc fatigue performance. This research aims to enhance understanding of the cracking mechanism and improve the reliability of brake systems for high-speed trains.

Suggested Citation

  • Jinnan Wang & Muhammad Qasim Zafar & Yunbo Chen & Lingli Zuo & Xiangjun Zhang & Pu Xie & Haiyan Zhao, 2024. "Numerical simulation and mechanism analysis of thermal fatigue crack for low-alloy steel brake disc of high-speed train," International Journal of Rail Transportation, Taylor & Francis Journals, vol. 12(5), pages 944-957, September.
    • Handle: RePEc:taf:tjrtxx:v:12:y:2024:i:5:p:944-957
    DOI: 10.1080/23248378.2023.2264866
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/23248378.2023.2264866
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/23248378.2023.2264866?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:tjrtxx:v:12:y:2024:i:5:p:944-957. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/tjrt20 .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.