Attenuation characteristics of stress wave in cracked concrete beam using smart aggregate transducers enabled time-reversal technique
- 24 September 2020
- journal article
- research article
- Published by SAGE Publications in Journal of Intelligent Material Systems and Structures
- Vol. 32 (4), 473-485
- https://doi.org/10.1177/1045389x20953619
Abstract
Piezoelectric enabled stress wave methods for concrete structural health monitoring have been widely researched. However, the attenuation characteristics of stress wave in cracked concrete structures have barely been studied. As a result, it is hard to quantify the damage levels of the concrete structure. In this paper, the attenuation characteristics of stress wave in cracked concrete beam are studied using stress wave with the time-reversal technique. The attenuation model of stress waves related to the focused signal amplitude and the total crack width of concrete beam is proposed. In this study, a series of 18 concrete beams were tested using a four-point loading. During the test procedure, the signals of stress wave from the piezoelectric smart aggregate transducers in all the test specimens were collected to facilitate the proposed model. The test data of 12 beams are used to determine the attenuation coefficient of stress wave per unit crack width, and the test data of the other six beams are used to validate the accuracy of the proposed attenuation model. The results indicate that the prediction results based on the stress wave attenuation model are in good agreement with the test results of cracked concrete beams.Keywords
Funding Information
- Key Research Project by Department of Education of Guangdong Province, China (2018KZDXM068)
- National Natural Science Foundation of China (51678149)
- Science and Technology Planning Project of Guangdong Province (2016A010103045)
- Guangdong Science and Technology Collaborative Innovation Center for Earthquake Prevention and Disaster Reduction (2018B020207011)
- Innovation Group Supported by Department of Education of Guangdong Province (2019KCXTD013)
- Key Research Project of Social Science and Technology of Dongguan City, China (20185071401603)
This publication has 71 references indexed in Scilit:
- Numerical and experimental studies on damage detection of a concrete beam based on PZT admittances and correlation coefficientConstruction and Building Materials, 2013
- Very early age concrete hydration characterization monitoring using piezoceramic based smart aggregatesSmart Materials and Structures, 2013
- Structural health monitoring of concrete columns subjected to seismic excitations using piezoceramic-based sensorsSmart Materials and Structures, 2011
- Modelling of attenuation of Lamb waves using Rayleigh damping: Numerical and experimental studiesComposite Structures, 2011
- Analysis of coherent surface wave dispersion and attenuation for non-destructive testing of concreteUltrasonics, 2009
- Smart aggregates: multi-functional sensors for concrete structures—a tutorial and a reviewSmart Materials and Structures, 2008
- Wave propagation modeling of the PZT sensing region for structural health monitoringSmart Materials and Structures, 2007
- Comparison of Piezoelectric Energy Harvesting Devices for Recharging BatteriesJournal of Intelligent Material Systems and Structures, 2005
- Experimental study of wave dispersion and attenuation in concreteUltrasonics, 2005
- Optimal Vibration Control of a Model Frame Structure Using Piezoceramic Sensors and ActuatorsJournal of Vibration and Control, 2005