A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS
The paper analyzes the effects of T-shaped cracks in beams regarding the manner in which the frequencies of the bending modes change. We determined the eigenfrequencies of the damaged beam involving the finite element method for five lengths of the branched crack’s longitudinal components and numer...
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| Format: | Article |
| Language: | English |
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Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2018-12-01
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| Series: | Journal of Engineering Studies and Research |
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| Online Access: | https://jesr.ub.ro/index.php/1/article/view/49 |
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| _version_ | 1823863575881449472 |
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| author | Cristian Tufisi GILBERT-RAINER Gillich |
| author_facet | Cristian Tufisi GILBERT-RAINER Gillich |
| author_sort | Cristian Tufisi |
| collection | DOAJ |
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The paper analyzes the effects of T-shaped cracks in beams regarding the manner in which the frequencies of the bending modes change. We determined the eigenfrequencies of the damaged beam involving the finite element method for five lengths of the branched crack’s longitudinal components and numerous crack locations. This permitted plotting the frequency shifts curves and calculating the relative frequency shifts. Afterward, we extracted the damage patterns for all crack types and one crack position. It was found that the patterns are quite similar, just differing by their amplitudes, thus by normalization the damage severity effect can be suppressed.
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| format | Article |
| id | doaj-art-0bd02af6937442349caebdb683aaf2e8 |
| institution | Kabale University |
| issn | 2068-7559 2344-4932 |
| language | English |
| publishDate | 2018-12-01 |
| publisher | Alma Mater Publishing House "Vasile Alecsandri" University of Bacau |
| record_format | Article |
| series | Journal of Engineering Studies and Research |
| spelling | doaj-art-0bd02af6937442349caebdb683aaf2e82025-02-09T11:37:51ZengAlma Mater Publishing House "Vasile Alecsandri" University of BacauJournal of Engineering Studies and Research2068-75592344-49322018-12-01244A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMSCristian Tufisi0GILBERT-RAINER Gillich 1“Eftimie Murgu” University of Resita, Piata Traian Vuia 1-4, Resita, 320085, Romania“Eftimie Murgu” University of Resita, Piata Traian Vuia 1-4, Resita, 320085, Romania The paper analyzes the effects of T-shaped cracks in beams regarding the manner in which the frequencies of the bending modes change. We determined the eigenfrequencies of the damaged beam involving the finite element method for five lengths of the branched crack’s longitudinal components and numerous crack locations. This permitted plotting the frequency shifts curves and calculating the relative frequency shifts. Afterward, we extracted the damage patterns for all crack types and one crack position. It was found that the patterns are quite similar, just differing by their amplitudes, thus by normalization the damage severity effect can be suppressed. https://jesr.ub.ro/index.php/1/article/view/49cantilevervibrationeigenfrequencyT-shaped crackfrequency drop |
| spellingShingle | Cristian Tufisi GILBERT-RAINER Gillich A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS Journal of Engineering Studies and Research cantilever vibration eigenfrequency T-shaped crack frequency drop |
| title | A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS |
| title_full | A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS |
| title_fullStr | A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS |
| title_full_unstemmed | A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS |
| title_short | A NUMERICAL STUDY REGARDING THE INFLUENCE OF THE LONGITUDINAL EXTENT OF A T-SHAPED CRACK ON THE EIGENFREQUENCY DECREASE OF CANTILEVER BEAMS |
| title_sort | numerical study regarding the influence of the longitudinal extent of a t shaped crack on the eigenfrequency decrease of cantilever beams |
| topic | cantilever vibration eigenfrequency T-shaped crack frequency drop |
| url | https://jesr.ub.ro/index.php/1/article/view/49 |
| work_keys_str_mv | AT cristiantufisi anumericalstudyregardingtheinfluenceofthelongitudinalextentofatshapedcrackontheeigenfrequencydecreaseofcantileverbeams AT gilbertrainergillich anumericalstudyregardingtheinfluenceofthelongitudinalextentofatshapedcrackontheeigenfrequencydecreaseofcantileverbeams AT cristiantufisi numericalstudyregardingtheinfluenceofthelongitudinalextentofatshapedcrackontheeigenfrequencydecreaseofcantileverbeams AT gilbertrainergillich numericalstudyregardingtheinfluenceofthelongitudinalextentofatshapedcrackontheeigenfrequencydecreaseofcantileverbeams |