Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment
The detection and localization of different damage features in thin-wall beam composite and plastic beams using Operational Modal Analysis (OMA) has been demonstrated experimentally. The detection of small damage features using modal analysis techniques is an emerging field, with few experimental OM...
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Elsevier
2024-10-01
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| Series: | Composites Part C: Open Access |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666682024001117 |
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| author | Josué Pacheco-Chérrez Manuel Aenlle Pelayo Fernández Carlos Colchero Oliver Probst |
| author_facet | Josué Pacheco-Chérrez Manuel Aenlle Pelayo Fernández Carlos Colchero Oliver Probst |
| author_sort | Josué Pacheco-Chérrez |
| collection | DOAJ |
| description | The detection and localization of different damage features in thin-wall beam composite and plastic beams using Operational Modal Analysis (OMA) has been demonstrated experimentally. The detection of small damage features using modal analysis techniques is an emerging field, with few experimental OMA-based assessments having been reported so far. The proposed method is based on OMA combined with Stochastic Subspace Identification (SSI) and the enhancement of damage features by Continuous Wavelet Transforms (CWT). A composite thin-wall beam (CTWB) structure in two measurement configurations and a PVC tube in a free-free configuration have been tested. Damage features detected include extra masses attached to the beam, with a range from 9.5 % to 14.0 % of the beam mass, and small cracks perpendicular to the beam axis with lengths of about 4 % of the perimeter of the cross section. Calibration curves relating the strength of the damage signal with the weight of the attached masses have been constructed. Two simultaneous cracks or two masses could be detected as well. The quantification and localization of damage feature along the beam was possible through the use of Gaussian fit surface applied to damage maps obtained with the CWT technique. The width of the Gaussian fit curve was of the order of the distance between accelerometers, but the accuracy, estimated to be around 3 % of the beam length, was found to have sub-grid resolution. The proposed method was shown to work reliably with a relatively coarse measurement grid, potentially allowing for cost-effective Structural Health Monitoring (SHM) approaches. |
| format | Article |
| id | doaj-art-d2fb2b97bfc347178684f1fa885f3c4e |
| institution | Kabale University |
| issn | 2666-6820 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Composites Part C: Open Access |
| spelling | doaj-art-d2fb2b97bfc347178684f1fa885f3c4e2024-12-09T04:28:23ZengElsevierComposites Part C: Open Access2666-68202024-10-0115100542Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessmentJosué Pacheco-Chérrez0Manuel Aenlle1Pelayo Fernández2Carlos Colchero3Oliver Probst4Tecnologico de Monterrey, School of Engineering and Sciences, Eugenio Garza Sada 2051, Monterrey 64849, MexicoDepartment of Construction and Manufacturing Engineering, University of Oviedo, Gijón 33204, SpainDepartment of Construction and Manufacturing Engineering, University of Oviedo, Gijón 33204, SpainTecnologico de Monterrey, School of Engineering and Sciences, Eugenio Garza Sada 2051, Monterrey 64849, MexicoTecnologico de Monterrey, School of Engineering and Sciences, Eugenio Garza Sada 2051, Monterrey 64849, Mexico; Corresponding author.The detection and localization of different damage features in thin-wall beam composite and plastic beams using Operational Modal Analysis (OMA) has been demonstrated experimentally. The detection of small damage features using modal analysis techniques is an emerging field, with few experimental OMA-based assessments having been reported so far. The proposed method is based on OMA combined with Stochastic Subspace Identification (SSI) and the enhancement of damage features by Continuous Wavelet Transforms (CWT). A composite thin-wall beam (CTWB) structure in two measurement configurations and a PVC tube in a free-free configuration have been tested. Damage features detected include extra masses attached to the beam, with a range from 9.5 % to 14.0 % of the beam mass, and small cracks perpendicular to the beam axis with lengths of about 4 % of the perimeter of the cross section. Calibration curves relating the strength of the damage signal with the weight of the attached masses have been constructed. Two simultaneous cracks or two masses could be detected as well. The quantification and localization of damage feature along the beam was possible through the use of Gaussian fit surface applied to damage maps obtained with the CWT technique. The width of the Gaussian fit curve was of the order of the distance between accelerometers, but the accuracy, estimated to be around 3 % of the beam length, was found to have sub-grid resolution. The proposed method was shown to work reliably with a relatively coarse measurement grid, potentially allowing for cost-effective Structural Health Monitoring (SHM) approaches.http://www.sciencedirect.com/science/article/pii/S2666682024001117Thin-wall beamCompositesPlasticsOperational modal analysisExperiment |
| spellingShingle | Josué Pacheco-Chérrez Manuel Aenlle Pelayo Fernández Carlos Colchero Oliver Probst Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment Composites Part C: Open Access Thin-wall beam Composites Plastics Operational modal analysis Experiment |
| title | Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment |
| title_full | Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment |
| title_fullStr | Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment |
| title_full_unstemmed | Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment |
| title_short | Damage detection in composite and plastic thin-wall beams by operational modal analysis: An experimental assessment |
| title_sort | damage detection in composite and plastic thin wall beams by operational modal analysis an experimental assessment |
| topic | Thin-wall beam Composites Plastics Operational modal analysis Experiment |
| url | http://www.sciencedirect.com/science/article/pii/S2666682024001117 |
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