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ORIGINAL RESEARCH article

Front. Built Environ.
Sec. Construction Materials
Volume 10 - 2024 | doi: 10.3389/fbuil.2024.1417080
This article is part of the Research Topic Advancing Sustainable Infrastructure: Exploring the Role of Fiber Reinforced Polymer (FRP) in Underground Structure Reinforcement View all articles

Mechanical Properties and Stress Equation of Steel Pipe with Circular Corrosion

Provisionally accepted
Kejie Zhai Kejie Zhai *
  • Zhengzhou University, Zhengzhou, China

The final, formatted version of the article will be published soon.

    Steel pipes are widely used in water supply engineering, the wall thickness of the pipe reduces due to corrosion and other reasons, resulting in a decrease in the bearing capacity. To clarify the mechanical properties of the pipe under the case of circular corrosion, a three-dimensional finite element model is established, the influence of the mesh size on the convergence of the results is analyzed, and the finite element results were checked and evaluated using the analytical solution.Afterward, the effects of parameters such as corrosion diameter, corrosion depth, pipe diameter, and internal pressure on the maximum stress and displacement are studied. At last, based on 420 sets of data, the prediction equation of the pipe maximum stress is obtained. The results show that the finite element results are in good agreement with the analytical results, and the radial displacement of the corroded area is large. In corrosive areas, there are significant differences in stress at different locations.

    Keywords: Steel pipe, corrosion, Mechanical Properties, Stress equation, Finite element method

    Received: 14 Apr 2024; Accepted: 30 Jul 2024.

    Copyright: © 2024 Zhai. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Kejie Zhai, Zhengzhou University, Zhengzhou, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.