Damage detection tomography based on guided waves in composite structures using a distributed sensor network

Memmolo, Vittorio; Maio, Leandro; Boffa, Natalino Daniele; Monaco, Ernesto; Ricci, Fabrizio

doi:10.1117/1.oe.55.1.011007

Cited by 57 publications

(33 citation statements)

References 13 publications

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“…In the immersion testing process, a liquid couplant is employed to establish direct contact between a transducer and the composite specimen. Most of the research effort in the technical literature searched regarding the ultrasonic C-scan testing has been focused on either verification of other NDE techniques with ultrasonic C-scan as a reference standard [35,47,89,91,109,112,126] or yielding supplementary information [26,38,105,117,127].…”

Section: Nde Techniquesmentioning

confidence: 99%

“…The multiplication of probabilities illustrates a good indication of the shape of delamination with DPA ratio 0.058%. Delamination emerged when subjected to the low-velocity impact in a composite plate and was detected utilizing signals obtained via the pitch-catch method in a circular configuration of PZT sensors [47]. Those actuator-sensor paths having an energy-based index incorporating baseline data higher than the baseline threshold evaluated through Kolmogorov and Smirnov testing (as damaged paths) were taken into damage detection process.…”

Section: Elastic Wave-based Inspectionmentioning

confidence: 99%

See 1 more Smart Citation

A Survey of Scrutinizing Delaminated Composites via Various Categories of Sensing Apparatus

Askaripour

Żak

2019

J. Compos. Sci.

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Scrutinizing delaminated composites is extensively conducted based on measurements of various types of nondestructive sensing apparatus, classified herein as systems of thermographic inspection, piezoelectric inspection, optical interferometric inspection, electromagnetic testing, ultrasonic testing, and visual testing. The development of the subject has been reviewed during 2000–2017. Not only does the substantial corresponding literature strongly indicates numerous increasing industrial demand for composites, including carbon fiber-reinforced polymer, glass fiber-reinforced polymer, and fiber-reinforced metal laminate, but also the significant potential of composites to delaminate when subjected particularly to impact, machining operation or manufacturing imperfections. Conducting a study on the corresponding literature, the subject of delamination inspection within composites is found to be a dynamic, mature field, while lacking a thorough literature review. Therefore, the present study addresses the mentioned gap regarding various sensation systems utilized so as to detect internal anomalies in composites for the review arrangement. To that end, the literature inclusion in terms of citation times is electronically adopted associated with an appropriate combination of keywords. The study may be considered as a comprehensive, up-to-date review covering all delamination inspection techniques founded on sensation systems, thus benefiting the readers with information in an organized configuration.

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Section: Nde Techniquesmentioning

confidence: 99%

Section: Elastic Wave-based Inspectionmentioning

confidence: 99%

A Survey of Scrutinizing Delaminated Composites via Various Categories of Sensing Apparatus

Askaripour

Żak

2019

J. Compos. Sci.

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“…In detail, the detection approach is based on a multi-path analysis in which lines of sight between every actuator-receiver pair are exploited to obtain a set of independent interrogations, whose post processing returns the several features described. Using a cluster with a limited number of sources, it is indeed possible to define a discrete number of paths affected by damage emerging at the surrounding area [37]. The same approach can be used also in complex structures as depicted in Figure 2 where a double-line array of sensors is adopted to monitor the stringer in a stiffened structure.…”

Section: Multi-path Reconstruction Principlesmentioning

confidence: 99%

“…Kolmogorov-Smirnov testing: Comparison between analytical and experimental cumulative distribution functions of the signal response noise in a composite panel without defect[37].…”

mentioning

confidence: 99%

Damage Localization in Composite Structures Using a Guided Waves Based Multi-Parameter Approach

et al. 2018

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Aerospace vehicles are demanded to withstand harsh conditions with a low weight impact. Composites have been increasingly adopted to meet such performances but they are affected by sudden and barely visible failures when subjected to low velocity impacts. The design criteria and the maintenance tasks in a damage tolerant approach are unavoidably compromised. Structural Health Monitoring is expected to avoid typical accommodations employed during design and lifetime management by achieving a cost-effective and on condition maintenance. This paper describes the use of guided ultrasonic waves excited and sensed by permanently attached piezoelectric transducers for detection and localization of unforeseen and hidden flaws in composite structures. A composite stiffened structures designed for real scale components is investigated to test a multi-parameter detection technique capable of predicting different wave features affected by hidden failures to detect any possible change in the structure. Usually, propagation behavior is exploited to detect changes in the waveguide focusing on the analysis of an intrinsic feature of the propagating wave. Numerical simulations and measurements carried out on a real-scale aircraft structure demonstrate that increasing the observed characteristics improves the result making efficient the diagnosis. Furthermore, it is shown that accounting a multi-parameter analysis of ultrasonic data enhances the localization reliability making use of the same reconstruction algorithm with data fusion approach while facing with different kind of damages.

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“…Purekar et al imaged the damage on a plate with the aid of phased array filters using piezoceramic transducer networks. Memmolo et al proposed an impact damage detection method for plate‐like structures based on the ultrasonic‐guided wave tomography technique. Zeng et al improved the resolution of Lamb wave inspection based on the waveform separation and image fusion strategy.…”

Section: Introductionmentioning

confidence: 99%

A novel time reversal sub-group imaging method with noise suppression for damage detection of plate-like structures

Gao

Zhang

et al. 2017

Struct Control Health Monit

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Summary In this paper, a new time reversal imaging (TRI) algorithm with noise suppression is developed for the application of imaged based structural damage detection of plate‐like structures. The conventional TRI method suffers from performance degradation in high noise condition. The proposed method addresses the aforementioned issues. First, an array of detection transducers is used and is divided into several subgroups. Then, the echo signals of the subgroups are time reversed and reemitted via numerical computation. Finally, the cross‐correlation functions of the summation of refocused time reversed signals in each subgroup are obtained to locate damages. The time reversed signals at the reference time are irrelevant to the noise, meanwhile, the multiple refocused signals in each subgroup are first added and then cross‐correlated. Therefore, the proposed method can effectively suppress noise. To validate the effectiveness of proposed method, 2 experiments were performed. The 2 experiments involved 2 aluminum plate specimens. Each specimen was equipped with 4 surface‐bonded lead zirconate titanate transducers. One specimen involved a simulated damage (an addition of a mass), and the other one involved an actual through‐hole damage. The experimental performances of the proposed method are compared to those of the conventional TRI method. The imaging results demonstrated that the damage on both specimens was clearly displayed with high spatial resolution by the proposed method even under the low signal‐to‐noise ratio condition. On the contrary, the location of the damage computed by the conventional TRI method was submerged in noise and cannot be distinguished.

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Damage detection tomography based on guided waves in composite structures using a distributed sensor network

Cited by 57 publications

References 13 publications

A Survey of Scrutinizing Delaminated Composites via Various Categories of Sensing Apparatus

A Survey of Scrutinizing Delaminated Composites via Various Categories of Sensing Apparatus

Damage Localization in Composite Structures Using a Guided Waves Based Multi-Parameter Approach

A novel time reversal sub-group imaging method with noise suppression for damage detection of plate-like structures

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