TY  - JOUR
AU  - Stojić, Dragoslav
AU  - Nestorović, Tamara
AU  - Marković, Nemanja
AU  - Marjanović, Miroslav
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/941
AB  - This paper presents an experimental-numerical analysis of damage localization of concrete plate-like elements on the basis of hybrid approach. The proposed hybrid approach uses the fast discrete wavelet transform, energy approach, and time of flight criterion for the purpose of localization of single and multidamage problems inside or on the periphery of concrete elements. Verification of the proposed damage localization approach has been performed under laboratory conditions using a laser scanning-based system with piezoelectric excitation of the wave propagation. Numerical simulation of the wave propagation is performed using the explicit finite element method using 3D models with linear-elastic material model of concrete with Rayleigh damping. The Rayleigh damping coefficients are determined on the basis of experimental data and implemented in numerical models. Validation of the numerical model is conducted, based on the comparison with sensor output signals obtained through experimental measuring and a very good agreement of results is obtained. The proposed hybrid approach to damage localization is verified using 15 different models/specimens, varying the number, shape (circular or notched), and position of damage, as well as the number and placement of actuators/sensors. For all the analyzed scenarios, the hybrid approach successfully localized the damage even for the least number of used sensor positions. In the models with the circular damage, the damage image created on the basis of the hybrid approach is almost identical to the actual shape of the damage, indicating a good potential of the method for damage localization.
PB  - John Wiley and Sons Ltd
T2  - Structural Control & Health Monitoring
T1  - Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach
IS  - 9
VL  - 25
DO  - 10.1002/stc.2214
ER  - 

@article{
author = "Stojić, Dragoslav and Nestorović, Tamara and Marković, Nemanja and Marjanović, Miroslav",
year = "2018",
abstract = "This paper presents an experimental-numerical analysis of damage localization of concrete plate-like elements on the basis of hybrid approach. The proposed hybrid approach uses the fast discrete wavelet transform, energy approach, and time of flight criterion for the purpose of localization of single and multidamage problems inside or on the periphery of concrete elements. Verification of the proposed damage localization approach has been performed under laboratory conditions using a laser scanning-based system with piezoelectric excitation of the wave propagation. Numerical simulation of the wave propagation is performed using the explicit finite element method using 3D models with linear-elastic material model of concrete with Rayleigh damping. The Rayleigh damping coefficients are determined on the basis of experimental data and implemented in numerical models. Validation of the numerical model is conducted, based on the comparison with sensor output signals obtained through experimental measuring and a very good agreement of results is obtained. The proposed hybrid approach to damage localization is verified using 15 different models/specimens, varying the number, shape (circular or notched), and position of damage, as well as the number and placement of actuators/sensors. For all the analyzed scenarios, the hybrid approach successfully localized the damage even for the least number of used sensor positions. In the models with the circular damage, the damage image created on the basis of the hybrid approach is almost identical to the actual shape of the damage, indicating a good potential of the method for damage localization.",
publisher = "John Wiley and Sons Ltd",
journal = "Structural Control & Health Monitoring",
title = "Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach",
number = "9",
volume = "25",
doi = "10.1002/stc.2214"
}

Stojić, D., Nestorović, T., Marković, N.,& Marjanović, M.. (2018). Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach. in Structural Control & Health Monitoring
John Wiley and Sons Ltd., 25(9).
https://doi.org/10.1002/stc.2214

Stojić D, Nestorović T, Marković N, Marjanović M. Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach. in Structural Control & Health Monitoring. 2018;25(9).
doi:10.1002/stc.2214 .

Stojić, Dragoslav, Nestorović, Tamara, Marković, Nemanja, Marjanović, Miroslav, "Experimental and numerical research on damage localization in plate-like concrete structures using hybrid approach" in Structural Control & Health Monitoring, 25, no. 9 (2018),
https://doi.org/10.1002/stc.2214 . .

TY  - JOUR
AU  - Marković, Nemanja
AU  - Nestorović, Tamara
AU  - Stojić, Dragoslav
AU  - Marjanović, Miroslav
AU  - Stojković, Nenad
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/870
AB  - In the paper, a novel approach for damage localization in reinforced concrete plates, based on the computational analysis of piezoelectric smart aggregates, has been presented. The hybrid approach for damage localization is based on two criteria: wave propagation energy and time of flight. The comprehensive numerical analysis using standard and explicit finite element method has been conducted. In addition, the proposed algorithm of the hybrid method has been coded in MATLAB. The approach has been verified numerically using different square reinforced concrete plate models, considering different number, position and size of damage, as well as different number and position of the piezoelectric smart aggregates. Obtained results confirm the successful application of the novel approach to the damage localization.
PB  - Elsevier Ltd
T2  - Mechanics Research Communications
T1  - Hybrid approach for two dimensional damage localization using piezoelectric smart aggregates
EP  - 75
SP  - 69
VL  - 85
DO  - 10.1016/j.mechrescom.2017.08.011
ER  - 

@article{
author = "Marković, Nemanja and Nestorović, Tamara and Stojić, Dragoslav and Marjanović, Miroslav and Stojković, Nenad",
year = "2017",
abstract = "In the paper, a novel approach for damage localization in reinforced concrete plates, based on the computational analysis of piezoelectric smart aggregates, has been presented. The hybrid approach for damage localization is based on two criteria: wave propagation energy and time of flight. The comprehensive numerical analysis using standard and explicit finite element method has been conducted. In addition, the proposed algorithm of the hybrid method has been coded in MATLAB. The approach has been verified numerically using different square reinforced concrete plate models, considering different number, position and size of damage, as well as different number and position of the piezoelectric smart aggregates. Obtained results confirm the successful application of the novel approach to the damage localization.",
publisher = "Elsevier Ltd",
journal = "Mechanics Research Communications",
title = "Hybrid approach for two dimensional damage localization using piezoelectric smart aggregates",
pages = "75-69",
volume = "85",
doi = "10.1016/j.mechrescom.2017.08.011"
}

Marković, N., Nestorović, T., Stojić, D., Marjanović, M.,& Stojković, N.. (2017). Hybrid approach for two dimensional damage localization using piezoelectric smart aggregates. in Mechanics Research Communications
Elsevier Ltd., 85, 69-75.
https://doi.org/10.1016/j.mechrescom.2017.08.011

Marković N, Nestorović T, Stojić D, Marjanović M, Stojković N. Hybrid approach for two dimensional damage localization using piezoelectric smart aggregates. in Mechanics Research Communications. 2017;85:69-75.
doi:10.1016/j.mechrescom.2017.08.011 .

Marković, Nemanja, Nestorović, Tamara, Stojić, Dragoslav, Marjanović, Miroslav, Stojković, Nenad, "Hybrid approach for two dimensional damage localization using piezoelectric smart aggregates" in Mechanics Research Communications, 85 (2017):69-75,
https://doi.org/10.1016/j.mechrescom.2017.08.011 . .