Nemanja Marković

Piezoceramic Smart Aggregates for Active Monitoring of Reinforced Concrete Structures

Active structural health monitoring of reinforced concrete civil engineering structures using piezoceramic smart aggregates represent nondestructive evaluation techniques which is characterized by high reliability, wide frequency range, low cost, ease of use, and multifunctionality. Procedure of damage detection is based on wave propagation and used basic piezoelectric effects for smart aggregate actuators and sensors. Represented active monitoring method can detect damage that is not visible with the naked eye, damage that is in inaccessible parts of structures, and damage that cannot be caught by visual inspections. Also, during the measurement, a construction can be undisturbed used which is very important for bridges or industrial production halls. Structural health monitoring is performed by a one-dimensional and two-dimensional damage index formed using wavelet signal analysis and based on energy changes of output sensor signals. In this paper, piezoelectric smart aggregates for structural health monitoring, damage detection, and localization purpose of reinforced concrete civil engineering structures are represented.

Detection of damage to reinforced-concrete structures using piezoelectric smart aggregates

The implementation of active monitoring systems to diagnose damage to reinforced concrete structures using piezoelectric smart aggregates, and based on wave propagation, ranks among the world’s most advanced research activities. Original models, with parametric analysis of the damage index variation problem, depending on the size, position and orientation of cracks, are presented in the paper. Numerical modelling of wave propagation in reinforced concrete is conducted using the explicit finite element method, which is highly effective for this purpose.

Otkrivanje oštećenja armiranobetonskih konstrukcija primjenom piezoelektričnih pametnih agregata

The implementation of active monitoring systems to diagnose damage to reinforced concrete structures using piezoelectric smart aggregates, and based on wave propagation, ranks among the world’s most advanced research activities. Original models, with parametric analysis of the damage index variation problem, depending on the size, position and orientation of cracks, are presented in the paper. Numerical modelling of wave propagation in reinforced concrete is conducted using the explicit finite element method, which is highly effective for this purpose.