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Comparing Monofractal and Multifractal Analysis of Corrosion Damage Evolution in Reinforcing Bars

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  • Yidong Xu
  • Chunxiang Qian
  • Lei Pan
  • Bingbing Wang
  • Chi Lou

Abstract

Based on fractal theory and damage mechanics, the aim of this paper is to describe the monofractal and multifractal characteristics of corrosion morphology and develop a new approach to characterize the nonuniform corrosion degree of reinforcing bars. The relationship between fractal parameters and tensile strength of reinforcing bars are discussed. The results showed that corrosion mass loss ratio of a bar cannot accurately reflect the damage degree of the bar. The corrosion morphology of reinforcing bars exhibits both monofractal and multifractal features. The fractal dimension and the tensile strength of corroded steel bars exhibit a power function relationship, while the width of multifractal spectrum and tensile strength of corroded steel bars exhibit a linear relationship. By comparison, using width of multifractal spectrum as multifractal damage variable not only reflects the distribution of corrosion damage in reinforcing bars, but also reveals the influence of nonuniform corrosion on the mechanical properties of reinforcing bars. The present research provides a new approach for the establishment of corrosion damage constitutive models of reinforcing bars.

Suggested Citation

  • Yidong Xu & Chunxiang Qian & Lei Pan & Bingbing Wang & Chi Lou, 2012. "Comparing Monofractal and Multifractal Analysis of Corrosion Damage Evolution in Reinforcing Bars," PLOS ONE, Public Library of Science, vol. 7(1), pages 1-8, January.
    • Handle: RePEc:plo:pone00:0029956
    DOI: 10.1371/journal.pone.0029956
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    Cited by:

    1. Alina Bărbulescu & Cristian Ștefan Dumitriu, 2023. "Fractal Characterization of Brass Corrosion in Cavitation Field in Seawater," Sustainability, MDPI, vol. 15(4), pages 1-14, February.
    2. Ramírez-Platas, Mariana & Morales-Cabrera, Miguel A. & Rivera, Victor M. & Morales-Zarate, Epifanio & Hernandez-Martinez, Eliseo, 2021. "Fractal and multifractal analysis of electrochemical noise to corrosion evaluation in A36 steel and AISI 304 stainless steel exposed to MEA-CO2 aqueous solutions," Chaos, Solitons & Fractals, Elsevier, vol. 145(C).

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