| Title: | Fracture mechanics analysis of a fatigue failure of a parabolic spring |
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| Authors: | ID Chapetti, Mirco Daniel (Author)
ID Senčič, Bojan (Author)
ID Gubeljak, Nenad (Author) |
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| Files: |  Chapetti-2023-Fracture_mechanics_analysis_of_a.pdf (3,99 MB)
MD5: DB3CA1150043246C78AC382F5DED77FF
 https://doi.org/10.1590/1517-7076-RMAT-2023-0115
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| Language: | English |
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| Work type: | Article |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FS - Faculty of Mechanical Engineering
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| Abstract: | This study analyzed the fatigue failure of a parabolic spring made of 51CrV4 steel. A fracture mechanics approach was used to quantify the driving force and resistance for different loading configurations, inclusion sizes, and residual stresses. The analysis considered surface and internal initiation processes, including the impact of residual stresses introduced by shot peening. Key findings include the ability of the methodology to analyze the variables influencing fatigue resistance and failure configuration, the competition between surface and internal fracture processes, the limitation of residual stresses, the importance of minimizing the maximum inclusion size, and the potential for enhancing the propagation threshold for long cracks. The employed methodology facilitates not only the quantification but also the comprehension of the influence of the intrinsic material resistance on the fracture process. |
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| Keywords: | spring, fracture mechanics, short cracks, fatigue strenght estimation, small defect assessment |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 04.04.2023 |
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| Article acceptance date: | 27.06.2023 |
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| Publication date: | 21.08.2023 |
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| Publisher: | Universidade Federal do Rio de Janeiro, Coordenação dos Programas de Pós-Graduação em Engenharia |
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| Year of publishing: | 2023 |
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| Number of pages: | 12 str. |
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| Numbering: | Letn. 28, Št. 3 |
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| PID: | 20.500.12556/DKUM-87722  |
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| UDC: | 539.2 |
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| ISSN on article: | 1517-7076 |
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| COBISS.SI-ID: | 162607363 |
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| DOI: | 10.1590/1517-7076-RMAT-2023-0115 |
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| Publication date in DKUM: | 26.03.2024 |
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| Views: | 342 |
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| Downloads: | 34 |
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| Metadata: |    |
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| Categories: | Misc.
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