Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect
The goal of the present paper is to discuss the reliability of a strain-based multiaxial Low-Cycle Fatigue (LCF) criterion in estimating the fatigue lifetime of metallic structural components subjected to multiaxial sinusoidal loading with zero and non-zero mean value. Since it is well-known that a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201816516002 |
| _version_ | 1818342143396151296 |
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| author | Scorza Daniela Carpinteri Andrea Fortese Giovanni Ronchei Camilla Vantadori Sabrina Zanichelli Andrea |
| author_facet | Scorza Daniela Carpinteri Andrea Fortese Giovanni Ronchei Camilla Vantadori Sabrina Zanichelli Andrea |
| author_sort | Scorza Daniela |
| collection | DOAJ |
| description | The goal of the present paper is to discuss the reliability of a strain-based multiaxial Low-Cycle Fatigue (LCF) criterion in estimating the fatigue lifetime of metallic structural components subjected to multiaxial sinusoidal loading with zero and non-zero mean value. Since it is well-known that a tensile mean normal stress reduces the fatigue life of structural components, three different models available in the literature are implemented in the present criterion in order to take into account the above mean stress effect. In particular, such a criterion is formulated in terms of strains by employing the displacement components acting on the critical plane and, then, by defining an equivalent strain related to such a plane. The Morrow model, the Smith-Watson-Topper model and the Manson-Halford model are applied to define such an equivalent strain. The effectiveness of the new formulations is evaluated through comparison with some experimental data reported in the literature, related to biaxial fatigue tests performed on metallic specimens under in-and out-of-phase loadings characterised by non-zero mean stress values. |
| first_indexed | 2024-12-13T16:10:00Z |
| format | Article |
| id | doaj.art-15bf421688cc42ba974c8d9b849c842f |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-13T16:10:00Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-15bf421688cc42ba974c8d9b849c842f2022-12-21T23:38:57ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011651600210.1051/matecconf/201816516002matecconf_fatigue2018_16002Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effectScorza DanielaCarpinteri AndreaFortese GiovanniRonchei CamillaVantadori SabrinaZanichelli AndreaThe goal of the present paper is to discuss the reliability of a strain-based multiaxial Low-Cycle Fatigue (LCF) criterion in estimating the fatigue lifetime of metallic structural components subjected to multiaxial sinusoidal loading with zero and non-zero mean value. Since it is well-known that a tensile mean normal stress reduces the fatigue life of structural components, three different models available in the literature are implemented in the present criterion in order to take into account the above mean stress effect. In particular, such a criterion is formulated in terms of strains by employing the displacement components acting on the critical plane and, then, by defining an equivalent strain related to such a plane. The Morrow model, the Smith-Watson-Topper model and the Manson-Halford model are applied to define such an equivalent strain. The effectiveness of the new formulations is evaluated through comparison with some experimental data reported in the literature, related to biaxial fatigue tests performed on metallic specimens under in-and out-of-phase loadings characterised by non-zero mean stress values.https://doi.org/10.1051/matecconf/201816516002 |
| spellingShingle | Scorza Daniela Carpinteri Andrea Fortese Giovanni Ronchei Camilla Vantadori Sabrina Zanichelli Andrea Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect MATEC Web of Conferences |
| title | Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect |
| title_full | Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect |
| title_fullStr | Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect |
| title_full_unstemmed | Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect |
| title_short | Multiaxial fatigue life estimation in low-cycle fatigue regime including the mean stress effect |
| title_sort | multiaxial fatigue life estimation in low cycle fatigue regime including the mean stress effect |
| url | https://doi.org/10.1051/matecconf/201816516002 |
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