Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions
Among vibration-based damage detection methods, one of the effective approaches for damage localization is the modal strain energy method. In this paper, the modal strain energy method is developed for damage detection in plate-like structures with various boundary conditions. Firstly, the theory of...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9963135 |
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| _version_ | 1832567445960785920 |
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| author | Thanh-Cao Le Duc-Duy Ho Thanh-Canh Huynh Van-Sy Bach |
| author_facet | Thanh-Cao Le Duc-Duy Ho Thanh-Canh Huynh Van-Sy Bach |
| author_sort | Thanh-Cao Le |
| collection | DOAJ |
| description | Among vibration-based damage detection methods, one of the effective approaches for damage localization is the modal strain energy method. In this paper, the modal strain energy method is developed for damage detection in plate-like structures with various boundary conditions. Firstly, the theory of the modal strain energy method is briefly outlined. In order to overcome the limitation of measuring points, a central difference method is newly employed to compute the partial differential terms in the modal strain energy formula. Finite element analysis is conducted on an aluminum thin plate to obtain the mode shapes before and after the occurrence of damage. Feasibility of the proposed method is verified by investigating plates with different types of boundary conditions. A damage index is presented to identify the location and extent of crack in the plate-like structures. The analytical results show that the proposed method accurately identifies the crack in the plate structure with various types of boundary conditions by using appropriate mode shapes and damage threshold. |
| format | Article |
| id | doaj-art-4b6120d8f38d4fed9961933d02515292 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-4b6120d8f38d4fed9961933d025152922025-02-03T01:01:25ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99631359963135Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary ConditionsThanh-Cao Le0Duc-Duy Ho1Thanh-Canh Huynh2Van-Sy Bach3Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, VietnamFaculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, VietnamFaculty of Civil Engineering, Duy Tan University, Da Nang City 550000, VietnamFaculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, VietnamAmong vibration-based damage detection methods, one of the effective approaches for damage localization is the modal strain energy method. In this paper, the modal strain energy method is developed for damage detection in plate-like structures with various boundary conditions. Firstly, the theory of the modal strain energy method is briefly outlined. In order to overcome the limitation of measuring points, a central difference method is newly employed to compute the partial differential terms in the modal strain energy formula. Finite element analysis is conducted on an aluminum thin plate to obtain the mode shapes before and after the occurrence of damage. Feasibility of the proposed method is verified by investigating plates with different types of boundary conditions. A damage index is presented to identify the location and extent of crack in the plate-like structures. The analytical results show that the proposed method accurately identifies the crack in the plate structure with various types of boundary conditions by using appropriate mode shapes and damage threshold.http://dx.doi.org/10.1155/2021/9963135 |
| spellingShingle | Thanh-Cao Le Duc-Duy Ho Thanh-Canh Huynh Van-Sy Bach Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions Shock and Vibration |
| title | Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions |
| title_full | Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions |
| title_fullStr | Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions |
| title_full_unstemmed | Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions |
| title_short | Crack Detection in Plate-Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions |
| title_sort | crack detection in plate like structures using modal strain energy method considering various boundary conditions |
| url | http://dx.doi.org/10.1155/2021/9963135 |
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