Detecting Damage Size and Shape in a Plate Structure Using PZT Transducer Array

Lu, Guangtao; Li, You–Rong; Zhou, Mingle; Feng, Qian; Song, Gangbing

doi:10.1061/(asce)as.1943-5525.0000904

Cited by 48 publications

(33 citation statements)

References 63 publications

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“…PZT (Lead Zirconate Titanate) is a type of piezoceramic material that possesses strong piezoelectric effect [49,50]. A PZT tranducer has the unique dual actuating and sensing functions along with its advantage of wide bandwidth, and therefore a PZT tranducer has the ability to generate and detect stress waves [51][52][53][54], including ultrasonic waves [55,56]. As the enanbling element for the active sensing method [57][58][59] and the electromechanial impedance (EMI) method [60,61], PZT transducers are often used in structural health monitoring (SHM) systems [62][63][64][65][66].…”

Section: Damage Processesmentioning

confidence: 99%

Study on Seismic Performance and Damage Analysis of Steel Plate Shear Wall with Partially Encased Composite (PEC) Columns

2019

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A steel plate shear wall often uses partially encased composite (PEC) columns instead of edge frame columns. Such a steel plate shear wall not only bears the gravity load of the structure and resists the bending moment caused by lateral force by taking advantage of the high bearing capacity and bending stiffness of PEC columns, but also effectively anchors with the frame column to counteract the tension field generated by the steel plate. Therefore, the performance of the steel plate shear wall after buckling can be fully exerted and the seismic performance of the structure can be improved. In order to investigate the seismic performance of the structure, a 1/3-scale specimen test of steel plate shear wall with PEC columns is designed and fabricated, and a finite element model is established with the same size of test. It is found that the test and simulation results are in good agreement, which confirms the reliability of the simulation. Subsequently, 20 models with different parameters of steel plate shear wall with PEC columns are analyzed using ABAQUS. Finally, the failure mode, hysteretic behavior, skeleton curve, and bearing capacity of steel plate shear wall with PEC columns are obtained. The results show that PEC columns have a good anchoring effect on the diagonal tension field and can fully exert the plasticity of the infill steel plate, so that steel plate shear wall with PEC columns has superior seismic performance. Experiments also reveal that the crack type of damages appear in a steel plate shear wall with PEC columns, and, as a future work, the authors will explore the use of structural health monitoring methods, such as piezoceramic transducer-based method, to monitor such cracks.

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Section: Damage Processesmentioning

confidence: 99%

Study on Seismic Performance and Damage Analysis of Steel Plate Shear Wall with Partially Encased Composite (PEC) Columns

2019

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“…Then, the degradation index i  is calculated according to Equation (22). The reverse loading stiffness, the yield load, the hardening stiffness, and the softening stiffness of the member hysteresis loop are calculated by Equation (28), (24), (25), and (26) respectively before the loading starts. The continued loading is performed along the softening stiffness of the members.…”

Section: Hysteresis Rulesmentioning

confidence: 99%

“…PZT is a type of piezoceramic material with very strong piezoelectric effect that enables the PZT transducer to have dual actuation and sensing capacity. In addition, PZT transducers have wide bandwidth and high sensitivity, and are widely used to generate and detect stress waves [25][26][27][28]. With the active sensing approach, a pair of PZT sensors and an actuator located along a stress wave path can monitor the damage on the path and a damage index can be established to reflect the severity of the damage.…”

Section: Introductionmentioning

confidence: 99%

Hysteretic Behavior of Steel Reinforced Concrete Columns Based on Damage Analysis

et al. 2019

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With the aim to model the seismic behavior of steel reinforced concrete (SRC) frame columns, in this research, hysteresis and skeleton curves were obtained based on the damage test results of SRC frame columns under low cyclic repeat loading and the hysteretic behavior of the frame columns was further analyzed. Then, the skeleton curve and hysteresis loops were further simplified. The simplified skeleton curve model was obtained through the corresponding feature points obtained by mechanical and regression analysis. The nonlinear combination seismic damage index, which was developed by the test results and can well reflect the effect of the loading path and the number of loading cycle of SRC frame columns, was used to establish the cyclic degradation index. The strength and stiffness degradation rule of the SRC frame columns was analyzed further by considering the effect of the accumulated damage caused by an earthquake. Finally, the hysteresis model of the SRC frame columns was established, and the specific hysteresis rules were given. The validity of the developed hysteresis model was verified by e comparison between the calculated results and the test results. The results showed that the model could describe the hysteresis characteristics of the SRC frame columns under cyclic loading and provide guidance for the elastoplastic time-history analysis of these structures.

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“…We will use piezoceramic patch transducers due to their advantages of high bandwidth [36][37][38], dual sensing and actuation capacity [39][40][41], and ease of bonding to the surface of a pipeline [42]. We plan to use the active sensing method [43,44] to perform the SHM of the pipeline by using distributed surface-bond piezoceramic patches [45]. With piezoelectric transducers, we can monitor the dynamic response of the pipeline in its passive mode [46][47][48] and perform damage detection using the active sensing method [49][50][51].…”

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confidence: 99%

Monitoring the Dynamic Response of a Buried Polyethylene Pipe to a Blast Wave: An Experimental Study

et al. 2019

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Although the use of polyethylene (PE) pipelines has become increasingly widespread in recent years, few studies have addressed their seismic design and ability to withstand blast waves. In order to establish their seismic capacity, the dynamic response of buried pipelines subjected to blast waves must be explored in depth. Here, we studied the dynamic response of PE pipes situated near an explosive source. Time histories of dynamic strains were measured by conventional strain gauges after simple waterproof treatment, and pipe and ground vibration velocity curves were obtained. Based on the experimental data, the attenuation law of the peak strains under the conditions of different charge masses and blast center distances was analyzed, and the spectrum characteristics of strain, velocity of the pipe, and ground velocity were studied. The results revealed that a large hoop strain on the PE pipes was produced due to the local impact near the explosive source. We found that peak hoop strain (PHS) or peak axial strain (PAS) had a power attenuation relationship with the scaled distance, and this relationship could also be derived by dimensional analysis. The average frequency of strains had the same attenuation form as the charge mass, which was between 10 Hz and 50 Hz. Additionally, the vibration of the pipe showed a low frequency. We also determined that the attenuation of the average frequency of pipe and ground vibration velocity was closely related to the charge mass and the scaled distance. Pipe peak vibration velocity (PPVV), ground peak particle velocity (GPPV), and the peak dynamic strain of pipe were highly positively correlated, which verifies the feasibility of using GPPV to characterize pipeline vibration and strain level. Thus, a blasting criterion of 10% minimum request strength (MRS) for PE pipe was proposed, which means that the additional PHS or PAS of the dangerous point must be less than 10% MRS, and we also propose limiting the safety distance–charge mass for blasts near buried PE pipelines by the criterion. Some results in this paper can serve as the basis for future in-depth theoretical research.

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Detecting Damage Size and Shape in a Plate Structure Using PZT Transducer Array

Cited by 48 publications

References 63 publications

Study on Seismic Performance and Damage Analysis of Steel Plate Shear Wall with Partially Encased Composite (PEC) Columns

Study on Seismic Performance and Damage Analysis of Steel Plate Shear Wall with Partially Encased Composite (PEC) Columns

Hysteretic Behavior of Steel Reinforced Concrete Columns Based on Damage Analysis

Monitoring the Dynamic Response of a Buried Polyethylene Pipe to a Blast Wave: An Experimental Study

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