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Experimental Study on Damage Evolution Characteristics of Concrete under Impact Load Based on EMI Method

Author

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  • Bin Tan

    (School of Transportation and Logistics, Southwest Jiaotong University, Chengdu 610031, China)

Abstract

In this paper, the damage evolution characteristics of C50 concrete under impact load were studied, based on the electro-mechanical impedance (EMI) technique. A parallel test was conducted based on the internal relationship between EMI technology and a resonant frequency test to verify the sensitivity and accuracy of EMI technology. In addition, another mechanical test was conducted on specimens with different levels of damage to establish the empirical relationship between the degree of damage and the mechanical properties of concrete. The degrees of damage were discussed by calculating the root mean square deviation (RMSD) index. Results illustrated that the damage changes of concrete can be well monitored by PZT patches. Based on the evolutionary characteristic of the RMSD index, worrying information can be obtained before the destruction of the concrete. On the other hand, mechanical test results indicated that the value of the RMSD was correlated with the splitting tensile strength of the concrete specimens; therefore, it can be used as a reference to evaluate and predict the performance of concrete.

Suggested Citation

  • Bin Tan, 2022. "Experimental Study on Damage Evolution Characteristics of Concrete under Impact Load Based on EMI Method," Sustainability, MDPI, vol. 14(17), pages 1-15, August.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:17:p:10557-:d:896473
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    References listed on IDEAS

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    1. Lucie Kucíková & Michal Šejnoha & Tomáš Janda & Jan Sýkora & Pavel Padevět & Guido Marseglia, 2021. "Mechanical Properties of Spruce Wood Extracted from GLT Beams Loaded by Fire," Sustainability, MDPI, vol. 13(10), pages 1-19, May.
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