Title: Feature extraction method of nano-carbon fibre reinforced concrete structure based on strength mechanical analysis method

Authors: Tian Tian; Ling Liu

Addresses: School of Civil Engineering, Changchun University of Architecture and Civil Engineering, Changchun, 130000, China ' School of Civil Engineering, Changchun University of Architecture and Civil Engineering, Changchun, 130000, China

Abstract: The traditional method has the problems of large error in feature extraction and long time for feature extraction, a feature extraction method of nano-carbon fibre reinforced concrete structure based on strength mechanical analysis method is proposed. The dynamic response relationship between nano-carbon fibre reinforced concrete pavement cracks and load was calculated by strength mechanics analysis method, and the crack strength factor of nano-carbon fibre reinforced concrete pavement was determined. The FWD method is used to measure the crack strength value and divide the crack strength grade. Based on the classification results of strength grades, the modal stiffness and the proportion of unit components are updated according to the carbon nanofiber reinforced concrete cracks, and the approximate expression is implemented. Finally, the causes of nano-carbon fibre reinforced concrete pavement cracks are analysed. Simulation experiments show that the method can extract crack features quickly and accurately, and has certain validity and feasibility.

Keywords: carbon nanofibers; pavement cracks; concrete cracks; feature extraction; structural stiffness.

DOI: 10.1504/IJMMP.2022.125570

International Journal of Microstructure and Materials Properties, 2022 Vol.16 No.2/3, pp.115 - 127

Received: 09 Feb 2022
Accepted: 02 Jun 2022
Published online: 15 Sep 2022 *

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