On the influence of joining processes on the vibration of structures
The joining of new and dissimilar materials in the transportation sector, to meet the demands for lighter structures, requires the use of alternative joining processes. However, it is not clear how different types of structural joints compare in terms of their contribution to the vibration and dampi...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Advanced Joining Processes |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666330923000328 |
| _version_ | 1827587905779924992 |
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| author | Pedro Millan A.Francisco G. Tenreiro João D.P. Amorim Mohammad Mehdi Kasaei Reza Beygi Jorge Ambrósio Lucas F.M. da Silva |
| author_facet | Pedro Millan A.Francisco G. Tenreiro João D.P. Amorim Mohammad Mehdi Kasaei Reza Beygi Jorge Ambrósio Lucas F.M. da Silva |
| author_sort | Pedro Millan |
| collection | DOAJ |
| description | The joining of new and dissimilar materials in the transportation sector, to meet the demands for lighter structures, requires the use of alternative joining processes. However, it is not clear how different types of structural joints compare in terms of their contribution to the vibration and damping of structures. The present work aims to provide a comprehensive experimental and numerical analysis on the contribution of three structural joints – butt friction stir welding, single lap adhesive joint and hole hemmed joint – to the vibration and damping of two joined aluminium sheets. For this purpose, experimental analysis is performed to study the free-free vibration of the three structural joints. In addition, finite element models are developed to better understand the behaviour of these joints and discuss the challenges of the numerical modelling procedure. The first four natural frequencies, experimentally obtained for each structure, suggest that the adhesive joint has significantly higher natural frequencies, due to the thickness increase at overlap, while the hole hemmed joint presents the most significant contribution to damping, owing to sliding at the overlap region. The numerical models show a very good agreement with the experimental results in terms of the natural frequencies and mode shapes, with simple modelling providing accurate results. In conclusion, the main findings are that the adhesive joints allow for a stiffer structure, with the natural frequencies increasing with the overlap dimension, while hole hemming enhances damping. The butt-butt friction stir welding has a small effect on the structural behaviour, showing a similar dynamic stiffness and damping when compared to a solid sheet of the same dimension. |
| first_indexed | 2024-03-09T00:24:42Z |
| format | Article |
| id | doaj.art-dd30bebfa44f474b89e4ba53eb2608f0 |
| institution | Directory Open Access Journal |
| issn | 2666-3309 |
| language | English |
| last_indexed | 2024-03-09T00:24:42Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Advanced Joining Processes |
| spelling | doaj.art-dd30bebfa44f474b89e4ba53eb2608f02023-12-12T04:36:29ZengElsevierJournal of Advanced Joining Processes2666-33092023-11-018100170On the influence of joining processes on the vibration of structuresPedro Millan0A.Francisco G. Tenreiro1João D.P. Amorim2Mohammad Mehdi Kasaei3Reza Beygi4Jorge Ambrósio5Lucas F.M. da Silva6LAETA, IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal; Corresponding author.Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Porto, PortugalDEMec, FEUP, Universidade do Porto, Porto, PortugalInstitute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Porto, PortugalInstitute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Porto, Portugal; Faculty of Engineering, Department of Materials Engineering and Metallurgy, Arak University, Arak 38156-8-8349, IranLAETA, IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, PortugalDEMec, FEUP, Universidade do Porto, Porto, PortugalThe joining of new and dissimilar materials in the transportation sector, to meet the demands for lighter structures, requires the use of alternative joining processes. However, it is not clear how different types of structural joints compare in terms of their contribution to the vibration and damping of structures. The present work aims to provide a comprehensive experimental and numerical analysis on the contribution of three structural joints – butt friction stir welding, single lap adhesive joint and hole hemmed joint – to the vibration and damping of two joined aluminium sheets. For this purpose, experimental analysis is performed to study the free-free vibration of the three structural joints. In addition, finite element models are developed to better understand the behaviour of these joints and discuss the challenges of the numerical modelling procedure. The first four natural frequencies, experimentally obtained for each structure, suggest that the adhesive joint has significantly higher natural frequencies, due to the thickness increase at overlap, while the hole hemmed joint presents the most significant contribution to damping, owing to sliding at the overlap region. The numerical models show a very good agreement with the experimental results in terms of the natural frequencies and mode shapes, with simple modelling providing accurate results. In conclusion, the main findings are that the adhesive joints allow for a stiffer structure, with the natural frequencies increasing with the overlap dimension, while hole hemming enhances damping. The butt-butt friction stir welding has a small effect on the structural behaviour, showing a similar dynamic stiffness and damping when compared to a solid sheet of the same dimension.http://www.sciencedirect.com/science/article/pii/S2666330923000328Structural jointsVibrationExperimental modal analysisAdhesive jointsFriction stir weldingHole hemming |
| spellingShingle | Pedro Millan A.Francisco G. Tenreiro João D.P. Amorim Mohammad Mehdi Kasaei Reza Beygi Jorge Ambrósio Lucas F.M. da Silva On the influence of joining processes on the vibration of structures Journal of Advanced Joining Processes Structural joints Vibration Experimental modal analysis Adhesive joints Friction stir welding Hole hemming |
| title | On the influence of joining processes on the vibration of structures |
| title_full | On the influence of joining processes on the vibration of structures |
| title_fullStr | On the influence of joining processes on the vibration of structures |
| title_full_unstemmed | On the influence of joining processes on the vibration of structures |
| title_short | On the influence of joining processes on the vibration of structures |
| title_sort | on the influence of joining processes on the vibration of structures |
| topic | Structural joints Vibration Experimental modal analysis Adhesive joints Friction stir welding Hole hemming |
| url | http://www.sciencedirect.com/science/article/pii/S2666330923000328 |
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