Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/134CAFD4-371C-4D11-BF21-55256B38F456 | - |
| Αναγνωριστικό | https://www.sciencedirect.com/science/article/pii/S0141029616001024?via%3Dihub | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.engstruct.2016.02.014 | - |
| Γλώσσα | en | - |
| Μέγεθος | 15 pages | en |
| Τίτλος | Investigation of a new experimental method for damage assessment of RC beams failing in shear using piezoelectric transducers | en |
| Δημιουργός | Voutetaki Maria-Styliani | en |
| Δημιουργός | Βουτετακη Μαρια-Στυλιανη | el |
| Δημιουργός | Papadopoulos Nikos A. | en |
| Δημιουργός | Angeli Georgia M. | en |
| Δημιουργός | Providakis Konstantinos | en |
| Δημιουργός | Προβιδακης Κωνσταντινος | el |
| Εκδότης | Elsevier | en |
| Περίληψη | The ability of a new portable real-time Wireless impedance/Admittance Monitoring System (WiAMS) in damage diagnosis of shear-critical RC beams is experimentally studied. This system is based on the electromechanical impedance concept integrating piezoelectric transducers in reinforced concrete structural elements. The proposed monitoring method uses WiAMS devices and an array of embedded "smart aggregates" and externally bonded piezoelectric transducers. Five shear-critical beams are tested in order to evaluate the ability of the proposed methodology in damage detection and assessment. Voltage signatures of the piezoelectric transducers have been measured at the healthy state and at different damage levels of the beams. Quantitative assessment of the damage using values of statistical damage index is also presented and discussed. Test results showed that transducers close to the diagonal cracking provided sound and gradual differences between the signatures at the healthy state and each damage level. Voltage responses and index values of the transducers located on the shear span where the critical crack formed provided cogent evidence of damage and their gradual character revealed the magnitude of damage. Promising results concerning the prediction of the forthcoming final shear failure at earlier damage stages such the onset of diagonal cracking have also been derived. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2018-10-15 | - |
| Ημερομηνία Δημοσίευσης | 2016 | - |
| Θεματική Κατηγορία | Beam | en |
| Θεματική Κατηγορία | Damage assessment | en |
| Θεματική Κατηγορία | Electro-Mechanical Admittance (EMA) | en |
| Θεματική Κατηγορία | Electro-Mechanical Impedance (EMI) | en |
| Θεματική Κατηγορία | Experimental testing | en |
| Θεματική Κατηγορία | Piezoelectric lead Zirconate Titanate (PZT) | en |
| Θεματική Κατηγορία | PZT sensor/actuator | en |
| Θεματική Κατηγορία | Reinforced Concrete (RC) | en |
| Θεματική Κατηγορία | Structural Health Monitoring (SHM) | en |
| Βιβλιογραφική Αναφορά | M. E. Voutetaki, N. A. Papadopoulos, G. M. Angeli and C. P. Providakis, "Investigation of a new experimental method for damage assessment of RC beams failing in shear using piezoelectric transducers," Eng. Struct., vol 114, pp. 226-240, May 2016. doi: 10.1016/j.engstruct.2016.02.014 | en |
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