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Fractal Characterization of Corroded Surface Profile in Reinforcing Steel Bars

机译：加固钢筋中腐蚀表面轮廓的分形表征

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Based on fractal geometry theory and surface roughness characterization technology, this paper presents the fractal characterization of nonuniform corrosion degree of corroded reinforcing steel bars. The surface profile curves of different corroded reinforcing steel bars were obtained and their fractal dimensions were calculated in order to describe the fractal characteristics. As is shown by the results, the surface profile curves of rebar have statistical fractal feature. However, fractal dimension is not sensitive to small changes in profile curves. By combining fractal dimension D with scale parameter C, characteristic profile parameter r* is derived to characterize the surface profile of corroded reinforcing steel bars sensitively, which realized the unity of multi-scale similarity measurement and absolute measurement. The results of this analysis will become the basis for corrosion damage evolution of corroded reinforcing steel bars.
机译：基于分形几何理论和表面粗糙度表征技术，本文介绍了腐蚀加强钢筋不均匀腐蚀程度的分形表征。获得不同腐蚀加强钢筋的表面轮廓曲线，并计算它们的分形尺寸以描述分形特征。如结果所示，钢筋的表面轮廓曲线具有统计分形特征。然而，分形维度对简档曲线的小变化不敏感。通过将分形尺寸D与Scale参数C组合，衍生特征轮廓参数R *以敏感地表征腐蚀加强钢筋的表面轮廓，这实现了多尺度相似性测量和绝对测量的统一。该分析的结果将成为腐蚀加强钢筋腐蚀损伤演化的基础。

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