Beam-like damage detection methodology using wavelet damage ratio and additional roving mass
Early damage detection plays an essential role in the safe and satisfactory maintenance of structures. This work investigates techniques use only damaged structure responses. A Timoshenko beam was modeled in finite element method, and an additional mass was applied along their length. Thus, a frequ...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2022-09-01
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| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://3.64.71.86/index.php/fis/article/view/3670 |
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| author | Juliana C. Santos Marcus V. G. de Morais Marcela R. Machado Ramon Silva Erwin U. L. Palechor Welington V. Silva |
| author_facet | Juliana C. Santos Marcus V. G. de Morais Marcela R. Machado Ramon Silva Erwin U. L. Palechor Welington V. Silva |
| author_sort | Juliana C. Santos |
| collection | DOAJ |
| description |
Early damage detection plays an essential role in the safe and satisfactory maintenance of structures. This work investigates techniques use only damaged structure responses. A Timoshenko beam was modeled in finite element method, and an additional mass was applied along their length. Thus, a frequency-shift curve is observed, and different damage identification techniques were used, such as the discrete wavelet transform and the derivatives of the frequency-shift curve. A new index called wavelet damage ratio(WDR) is defined as a metric to measure the damage levels. Damages were simulated like a mass discontinuity and a rotational spring (stiffness damage). Both models were compared to experimental tests since the mass added to the structure is a non-destructive tool. It was evaluated different damage levels and positions. Numerical results showed that all proposed techniques are efficient techniques for damage identification in Timoshenko's beams concerning low computational cost and practical application.
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| format | Article |
| id | doaj-art-f23375b2f36a44159c39f347dc5705cb |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-f23375b2f36a44159c39f347dc5705cb2025-02-03T10:34:52ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-09-011662Beam-like damage detection methodology using wavelet damage ratio and additional roving massJuliana C. Santos0Marcus V. G. de Morais1Marcela R. Machado2Ramon Silva3Erwin U. L. Palechor4Welington V. Silva5University of Brasilia, BrazilUniversity of Brasilia, BrazilUniversity of Brasilia, BrazilUniversity of Brasilia, BrazilFederal University of Cariri, BrazilUniversity of Brasilia, Brazil Early damage detection plays an essential role in the safe and satisfactory maintenance of structures. This work investigates techniques use only damaged structure responses. A Timoshenko beam was modeled in finite element method, and an additional mass was applied along their length. Thus, a frequency-shift curve is observed, and different damage identification techniques were used, such as the discrete wavelet transform and the derivatives of the frequency-shift curve. A new index called wavelet damage ratio(WDR) is defined as a metric to measure the damage levels. Damages were simulated like a mass discontinuity and a rotational spring (stiffness damage). Both models were compared to experimental tests since the mass added to the structure is a non-destructive tool. It was evaluated different damage levels and positions. Numerical results showed that all proposed techniques are efficient techniques for damage identification in Timoshenko's beams concerning low computational cost and practical application. https://3.64.71.86/index.php/fis/article/view/3670Structural Health MonitoringDamage detectionTimoshenko beamFrequency-shiftWaveletAdditional Roving Mass |
| spellingShingle | Juliana C. Santos Marcus V. G. de Morais Marcela R. Machado Ramon Silva Erwin U. L. Palechor Welington V. Silva Beam-like damage detection methodology using wavelet damage ratio and additional roving mass Fracture and Structural Integrity Structural Health Monitoring Damage detection Timoshenko beam Frequency-shift Wavelet Additional Roving Mass |
| title | Beam-like damage detection methodology using wavelet damage ratio and additional roving mass |
| title_full | Beam-like damage detection methodology using wavelet damage ratio and additional roving mass |
| title_fullStr | Beam-like damage detection methodology using wavelet damage ratio and additional roving mass |
| title_full_unstemmed | Beam-like damage detection methodology using wavelet damage ratio and additional roving mass |
| title_short | Beam-like damage detection methodology using wavelet damage ratio and additional roving mass |
| title_sort | beam like damage detection methodology using wavelet damage ratio and additional roving mass |
| topic | Structural Health Monitoring Damage detection Timoshenko beam Frequency-shift Wavelet Additional Roving Mass |
| url | https://3.64.71.86/index.php/fis/article/view/3670 |
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