Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques
Several damage indicators based on changes in modal properties validated for homogeneous materials were applied to detect damage in an unreinforced masonry cantilever panel. Damage was created by a “clean diagonal cut” at the center of the specimen which length was progressively extended towards the...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/9161025 |
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| _version_ | 1832568113306009600 |
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| author | Claudio Oyarzo-Vera Nawawi Chouw |
| author_facet | Claudio Oyarzo-Vera Nawawi Chouw |
| author_sort | Claudio Oyarzo-Vera |
| collection | DOAJ |
| description | Several damage indicators based on changes in modal properties validated for homogeneous materials were applied to detect damage in an unreinforced masonry cantilever panel. Damage was created by a “clean diagonal cut” at the center of the specimen which length was progressively extended towards the specimen’s corners. Numerical simulations were employed to determine the modal response at several damage states and this data was used to calculate the damage indicators. Those indicators presenting a good performance were then applied to identify damage on a physical specimen tested in the laboratory. The outcomes of this study demonstrated that vibration-based damage detection in unreinforced masonry structures can be satisfactorily performed. However, the identification of the damage spatial distribution using vibration-based methods in unreinforced masonry structures is still difficult. To improve the prediction of damage distribution, a large number of measurement points need to be considered to obtain an acceptable level of resolution. |
| format | Article |
| id | doaj-art-e999debd8c49495491c19389779c4fb8 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e999debd8c49495491c19389779c4fb82025-02-03T00:59:45ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/91610259161025Damage Identification of Unreinforced Masonry Panels Using Vibration-Based TechniquesClaudio Oyarzo-Vera0Nawawi Chouw1Departamento de Ingeniería Civil, Universidad Católica de la Santísima Concepción, Concepción, ChileDepartment of Civil and Environmental Engineering, University of Auckland, Auckland, New ZealandSeveral damage indicators based on changes in modal properties validated for homogeneous materials were applied to detect damage in an unreinforced masonry cantilever panel. Damage was created by a “clean diagonal cut” at the center of the specimen which length was progressively extended towards the specimen’s corners. Numerical simulations were employed to determine the modal response at several damage states and this data was used to calculate the damage indicators. Those indicators presenting a good performance were then applied to identify damage on a physical specimen tested in the laboratory. The outcomes of this study demonstrated that vibration-based damage detection in unreinforced masonry structures can be satisfactorily performed. However, the identification of the damage spatial distribution using vibration-based methods in unreinforced masonry structures is still difficult. To improve the prediction of damage distribution, a large number of measurement points need to be considered to obtain an acceptable level of resolution.http://dx.doi.org/10.1155/2017/9161025 |
| spellingShingle | Claudio Oyarzo-Vera Nawawi Chouw Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques Shock and Vibration |
| title | Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques |
| title_full | Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques |
| title_fullStr | Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques |
| title_full_unstemmed | Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques |
| title_short | Damage Identification of Unreinforced Masonry Panels Using Vibration-Based Techniques |
| title_sort | damage identification of unreinforced masonry panels using vibration based techniques |
| url | http://dx.doi.org/10.1155/2017/9161025 |
| work_keys_str_mv | AT claudiooyarzovera damageidentificationofunreinforcedmasonrypanelsusingvibrationbasedtechniques AT nawawichouw damageidentificationofunreinforcedmasonrypanelsusingvibrationbasedtechniques |