Numerical Prediction of the Fatigue Life of Complex Riveted Structures
In this study, a numerical prediction methodology used to evaluate the fatigue life of complex riveted aluminum alloy structures subjected to variable amplitude loads is presented. This methodology is based on the combination of experimental fatigue tests with the structural stresses approach to gen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Engineering Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4591/43/1/6 |
| _version_ | 1797381167083683840 |
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| author | Francis Corriveau Alain Desrochers Ahmed Maslouhi |
| author_facet | Francis Corriveau Alain Desrochers Ahmed Maslouhi |
| author_sort | Francis Corriveau |
| collection | DOAJ |
| description | In this study, a numerical prediction methodology used to evaluate the fatigue life of complex riveted aluminum alloy structures subjected to variable amplitude loads is presented. This methodology is based on the combination of experimental fatigue tests with the structural stresses approach to generate S(N) curves. Single-riveted specimens (Al5052-H36) with different characteristics (rivet diameter, sheet thickness, assembly configuration) were first tested experimentally. Using a simplified finite element model (FEM) and a probabilistic model to compute the structural stress of these tested samples, fatigue curves for each type of failure encountered during testing (sheet metal and rivet) with a confidence interval were generated. Of the probabilistic models that were studied, the Stüssi model was the most effective to correlate the experimental results. The proposed methodology was then combined with Miner’s law to predict the fatigue life of complex riveted structures subjected to variable amplitude loading. Using the proposed methodology, satisfactory predictions of the fatigue life of multi-rivet specimens and a structural assembly from a recreational vehicle subjected to variable amplitude loads were obtained without the need to use a complex finite element model for the riveted joints. The methodology proposed in this paper is efficient and quick to use, can be used for various states of stress, and is well suited for structural or fatigue optimization problems. |
| first_indexed | 2024-03-08T20:48:25Z |
| format | Article |
| id | doaj.art-16cb5ac1d0bd467a963c4b2560d5c299 |
| institution | Directory Open Access Journal |
| issn | 2673-4591 |
| language | English |
| last_indexed | 2024-03-08T20:48:25Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Engineering Proceedings |
| spelling | doaj.art-16cb5ac1d0bd467a963c4b2560d5c2992023-12-22T14:06:19ZengMDPI AGEngineering Proceedings2673-45912023-09-01431610.3390/engproc2023043006Numerical Prediction of the Fatigue Life of Complex Riveted StructuresFrancis Corriveau0Alain Desrochers1Ahmed Maslouhi2Department of Mechanical Engineering, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, CanadaDepartment of Mechanical Engineering, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, CanadaDepartment of Mechanical Engineering, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, CanadaIn this study, a numerical prediction methodology used to evaluate the fatigue life of complex riveted aluminum alloy structures subjected to variable amplitude loads is presented. This methodology is based on the combination of experimental fatigue tests with the structural stresses approach to generate S(N) curves. Single-riveted specimens (Al5052-H36) with different characteristics (rivet diameter, sheet thickness, assembly configuration) were first tested experimentally. Using a simplified finite element model (FEM) and a probabilistic model to compute the structural stress of these tested samples, fatigue curves for each type of failure encountered during testing (sheet metal and rivet) with a confidence interval were generated. Of the probabilistic models that were studied, the Stüssi model was the most effective to correlate the experimental results. The proposed methodology was then combined with Miner’s law to predict the fatigue life of complex riveted structures subjected to variable amplitude loading. Using the proposed methodology, satisfactory predictions of the fatigue life of multi-rivet specimens and a structural assembly from a recreational vehicle subjected to variable amplitude loads were obtained without the need to use a complex finite element model for the riveted joints. The methodology proposed in this paper is efficient and quick to use, can be used for various states of stress, and is well suited for structural or fatigue optimization problems.https://www.mdpi.com/2673-4591/43/1/6fatiguerivet lap jointstructural stressSN curvenumerical model |
| spellingShingle | Francis Corriveau Alain Desrochers Ahmed Maslouhi Numerical Prediction of the Fatigue Life of Complex Riveted Structures Engineering Proceedings fatigue rivet lap joint structural stress SN curve numerical model |
| title | Numerical Prediction of the Fatigue Life of Complex Riveted Structures |
| title_full | Numerical Prediction of the Fatigue Life of Complex Riveted Structures |
| title_fullStr | Numerical Prediction of the Fatigue Life of Complex Riveted Structures |
| title_full_unstemmed | Numerical Prediction of the Fatigue Life of Complex Riveted Structures |
| title_short | Numerical Prediction of the Fatigue Life of Complex Riveted Structures |
| title_sort | numerical prediction of the fatigue life of complex riveted structures |
| topic | fatigue rivet lap joint structural stress SN curve numerical model |
| url | https://www.mdpi.com/2673-4591/43/1/6 |
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