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Güemes AAuthorPerales JmCorresponding AuthorVega JmAuthor

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May 12, 2020
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Variable thickness in plates—a solution for shm based on the topological derivative

Publicated to: Sensors. 20 (9): E2529- - 2020-05-01 20(9), DOI: 10.3390/s20092529

Authors: Martínez, A; Güemes, A; Perales, JM; Vega, JM

Affiliations

MATEMÁTICA APLICADA A LA INGENIERÍA AEROESPACIAL. Universidad Politécnica de Madrid - Author
Univ Politecn Madrid, Dept Aerosp Vehicles, UPM - Author
Univ Politecn Madrid, Dept Appl Math, UPM - Author
Universidad Politécnica de Madrid - Author
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Abstract

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The topological derivative tool is applied here in structural health monitoring (SHM) problems to locate small defects in a material plate with complex geometry that is subject to permanent multifrequency guided waves excitation. Compared to more standard SHM methods, based in measuring the time-lag between emitted and received propagative pulses plus some postprocessing, the topological derivative somehow compares the measured and computed (solving the full elasto-dynamic equations) response of the damaged plate, instead of relying on only the time of flight of the wave. Thus, the method profits the knowledge behind the physics of the problem and can cope with scenarios in which classical methods give poor results. The authors of this paper have already used the topological derivative in rectangular plates with constant thickness, but with defects consisting simply in both through slits and inclusions of a different material, and actuators/sensors located near the boundary, which makes very difficult to use standard SHM methods. This is an extension of the method, also considering the much more difficult to analyze case of plates with variable thickness and complex (non-rectangular) planform.

Keywords

complex cross-sectiondefect detectionguided wavesinverse problemsmulti-frequencynon-destructive testingstructural health monitoringtopological derivativeComplex cross-sectionDamage detectionDefect detectionDiffraction tomographyElastic-wavesGuided wavesGuided-wavesInverse problemsInverse scatteringLamb wave-propagationMetallic structuresMulti-frequencyMultiple-scattering problemsNon-destructive testingPart iiSensitivityStructural health monitoringTopological derivativeVariable thickness

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Sensors due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2020, it was in position 14/64, thus managing to position itself as a Q1 (Primer Cuartil), in the category Instruments & Instrumentation.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-12-05:

  • Google Scholar: 4
  • WoS: 4
  • Scopus: 5

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-12-05:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 10 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/86255/

As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

  • Views: 95
  • Downloads: 17

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Martinez A) and Last Author (VEGA DE PRADA, JOSE MANUEL).

the author responsible for correspondence tasks has been PERALES PERALES, JOSE MANUEL.