Detection of barely visible multi-impact damage on carbon/epoxy composite plates using frequency response function correlation analysis

Cuadrado, Manuel; Pernas-Sáncheza, Jesús; Artero-Guerreroa, José Alfonso; Varasa, David

doi:10.1016/j.measurement.2022.111194

Cited by 11 publications

(7 citation statements)

References 66 publications

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“…Furthermore, the FDAC calculation implies a higher computational cost compared to the correlation criteria between modal order vectors, especially when there is a wide range and high resolution of frequencies. Examples of application of the FDAC criteria and its variants are found in references [32][33][34].…”

Section: Frequency Domain Assurance Criterion (Fdac)mentioning

confidence: 99%

A Novel Strategy for Automatic Mode Pairing on the Model Updating of Railway Systems with Nonproportional Damping

Ribeiro

Bragança

Brehm³

et al. 2022

Applied Sciences

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Mode pairing is a crucial step for the stability of any model-updating strategy based on experimental modal parameters. Automatically establishing a stable and assertive correspondence between numerical and experimental modes, in many cases, proves to be a very challenging task, especially in situations where complex mode shapes are present. This article presents a novel formulation for the automatic mode pairing between experimental and numerical complex modes based on an Energy-based Modal Assurance Criterion (EMAC). The efficiency of the proposed criterion was demonstrated on the basis of a case study involving the pairing between numerical and experimental modes of a passenger railway vehicle. A highly complex detailed FE numerical model of the vehicle was developed involving the modeling of the carbody, bogies and axles. A numerical damped modal analysis allowed obtaining the main global rigid-body and flexural modes of the vehicle’s carbody, as well as several local modes associated to the vibration of specific components of the carbody. Due to the localized damping provided by the suspensions, these modes presented complex modal ordinates, especially for the rigid-body modes. The comparison between the results obtained from the application of the EMAC and the classical MAC criteria, on the pairing of five global mode shapes, proved that the EMAC criterion is much more assertive, avoiding mismatches between the experimental global modes and some of the local numerical modes with similar configurations, and, consequently, establishing the correct correspondences between experimental and numerical modes.

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Section: Frequency Domain Assurance Criterion (Fdac)mentioning

confidence: 99%

A Novel Strategy for Automatic Mode Pairing on the Model Updating of Railway Systems with Nonproportional Damping

Ribeiro

Bragança

Brehm³

et al. 2022

Applied Sciences

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“…Detecting and assessing structural damage holds paramount importance in ensuring the safety of infrastructure within sectors such as aviation, aerospace, shipping, petrochemical, and defense industry, garnering significant attention [1]. Among current structural monitoring methods, ultrasonic guided wave inspection stands out for its extensive detection range, rapid speed, internal damage sensitivity, safety, convenience, and cost-effectiveness, rendering it a promising option for non-destructive testing and health monitoring of thin plate components [2,3].…”

Section: Introductionmentioning

confidence: 99%

Quantitative characterization of fatigue damage in plate structures based on FSOM

Zhang,

Liu,

Wei

et al. 2024

Smart Mater. Struct.

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For the problem of fatigue damage detection and damage degree assessment of plate structures, a quantitative damage assessment method based on the fast self-organizing feature mapping (FSOM) algorithm is proposed in this paper. The damage detection problem is transformed into a binary classification problem by extracting multidimensional damage features of the Lamb wave signal in plate to be detected and selecting damage sensitive features. Then, the FSOM network is used to identify the health state of the plate to be inspected, and the damage index is obtained by fusing the damage sensitive features using FSOM to quantitatively evaluate the damage level of the plate to be inspected. Simulation and experimental results show this method has a good dynamic tracking capability for the fatigue damage evolution of aluminum and composite plates, and can achieve quantitative assessment of fatigue damage of plate structures.

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“…Despite modifications in the type of excitation, boundary condition, damage position, and damage intensity, the approach requires advance algorithms and complex computational scheme to be successful in identifying damages in laminated composite plates. In both Lin 30 and Cuadrado et al 31 FRF was implemented to assess the damaged parts in truss structures with multi-cracks and delamination in laminated composite plate structures. Usage of FRF succeeds in localization of the damaged areas; however, no comparison to another study showing the influence of noise associated with dynamic signals was reported.…”

Section: Introductionmentioning

confidence: 99%

A novel index for vibration-based damage detection technique in laminated composite plates under forced vibrations: experimental study

Brethee

Uwayed

Qwam

2023

Structural Health Monitoring

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In this study, vibration modal analysis has been used to experimentally investigate the detection of fiber breakage (FB) and delamination in laminated composite plates. The modal analysis was performed on two arrangement styles of carbon fiber reinforced polymer (CFRP) laminated plates under forced vibrations. The main contribution in this study is that a new index named Improved Curvature Damage Factor (ICDF) was introduced to detect and localize damages in composite structures. It is a developed version of an earlier index based on the change in mode shape curvature (MSC) of dynamic response. To include the effect of more than one mode shape Cumulative Improved Damage Factor (CICDF) was proposed. The ICDF index was validated with a number of earlier studies that investigated the damage detection in different structures in order to approve the efficiency of this index. A scanning laser vibrometer was also used to experimentally examine the modal-based and forced responses for intact and damaged plates. Various experimental tests were used to verify the advantages of the proposed methodology and its use in structural health monitoring. In addition, the analysis of experimental results showed that the mutation caused by FB is almost double that of the value of delamination peaking.

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Detection of barely visible multi-impact damage on carbon/epoxy composite plates using frequency response function correlation analysis

Cited by 11 publications

References 66 publications

A Novel Strategy for Automatic Mode Pairing on the Model Updating of Railway Systems with Nonproportional Damping

A Novel Strategy for Automatic Mode Pairing on the Model Updating of Railway Systems with Nonproportional Damping

Quantitative characterization of fatigue damage in plate structures based on FSOM

A novel index for vibration-based damage detection technique in laminated composite plates under forced vibrations: experimental study

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