Guided wave propagation and spectral element method for debonding damage assessment in RC structures

Wang, Ying; Zhu, Xinqun; Hao, Hong; Ou, Jinping

doi:10.1016/j.jsv.2009.02.028

Cited by 94 publications

(63 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The authors have analysed the influence of different types of damages on elastic wave propagation in isotropic (aluminium, steel) and anisotropic (glass-epoxy composite) materials. An interaction of wave propagating in a steel-concrete rebar with damages has been analysed by the use of FDSFEM by [114].…”

Section: Wave Propagation In 1d Elementsmentioning

confidence: 99%

Spectral Methods for Modelling of Wave Propagation in Structures in Terms of Damage Detection—A Review

Palacz

2018

Applied Sciences

View full text Add to dashboard Cite

Modern methods of detection and identification of structural damage direct the activities of scientific groups towards the improvement of diagnostic methods using for example the phenomenon of mechanical wave propagation. Damage detection methods that use mechanical wave propagation in structural components are extremely effective. Many different numerical approaches are used to model this phenomenon, but, due to their universal nature, spectral methods are the most commonly used, of which there are several types. This paper reviews recent research efforts in the field to show basic differences and effectiveness of the two most common spectral methods used for modelling the wave propagation problem in terms of damage detection.

show abstract

Section: Wave Propagation In 1d Elementsmentioning

confidence: 99%

Spectral Methods for Modelling of Wave Propagation in Structures in Terms of Damage Detection—A Review

Palacz

2018

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…Besides the difference in bond strength, the bond mechanisms for well-confined and poorly confined (or unconfined) concrete are also very different. 17 In this study, the unconfined specimens were made for tests of split bond failure. Main purposes of the tests were to determine whether the PZT active sensing technique is able to detect the internal bond damage in realistic reinforced concrete tests.…”

Section: Proposed Bdimentioning

confidence: 99%

Ultrasonic guided wave active sensing for monitoring of split failures in reinforced concrete

Chan

Chang

2015

Structural Health Monitoring

View full text Add to dashboard Cite

The detection of bond deterioration for reinforced concrete structure in its early stages and throughout its service life can help to ensure the safety of the structure. An active sensing system with lead zirconium titanate sensors and using ultrasonic guided waves has been studied for bond integrity detection of structures under split failures. A series of pullout tests for unconfined concrete specimens has been performed. Both lead zirconium titanate sensor clips and strain gages were used to monitor the bonding damage. A bond deterioration index is defined to measure the bond integrity of the structure. While the strain gage measurements did not indicate any reduction in bond stress as the specimens were pulled to failure, the active sensing system showed a linear increment of bond deterioration index with the applied loads, indicating the accumulation of bond deterioration in unconfined concrete structure.

show abstract

“…In addition, the acoustic emission method is also used to measure CFRP–reinforced concrete slabs . In Wang et al, the ultrasonic testing method is used for nondestructive structural health monitoring of concrete specimens bonded with CFRP composites and subjected to accelerated aging conditions. During detection, both the acoustic emission method and the ultrasonic testing method require that the transducer must be put on the surface of specimen, and the coupling between transducer and specimen surface must be satisfied; this increases the complexity of detection.…”

Section: Introductionmentioning

confidence: 99%

Detection of slip for CFRP-concrete interface using stereovision method corrected by epipolar constraint

Shan

Pan

Huo

et al. 2018

Struct Control Health Monit

View full text Add to dashboard Cite

The bond-slip relationship for the interface between concrete and carbon fiber reinforced polymer (CFRP) has become a hot research topic. Aimed at the disadvantage of traditional measurement approaches, a stereovision method corrected by epipolar constraint is proposed to measure slip curves of CFRPconcrete interface in the present paper. The proposed stereovision measurement method employs the epipolar constraint to correct digital image correlation (DIC) matching result. The nearest point located on the right epipolar line to DIC matching result is chosen as the new matching point on the right image. Furthermore, this correction method is extended to the sequential matching of right images. The precision comparison test and the detection test of slip for CFRP-concrete interface are performed on the universal testing machine. Results of the precision comparison test show that the proposed stereovision method can improve the measurement accuracy. Experimental results of slip detection of CFRP-concrete interface show that the displacement curves obtained by the proposed stereovision method are in good agreement with that of the linear variable differential transformer (LVDT); this manifests the effectiveness and reliability of the proposed stereovision method, indicating that the proposed stereovision method can be used to measure the entire slip curves of CFRP-concrete interface.

show abstract

Guided wave propagation and spectral element method for debonding damage assessment in RC structures

Cited by 94 publications

References 19 publications

Spectral Methods for Modelling of Wave Propagation in Structures in Terms of Damage Detection—A Review

Spectral Methods for Modelling of Wave Propagation in Structures in Terms of Damage Detection—A Review

Ultrasonic guided wave active sensing for monitoring of split failures in reinforced concrete

Detection of slip for CFRP-concrete interface using stereovision method corrected by epipolar constraint

Contact Info

Product

Resources

About