The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading
In the present paper, the approach based on the strain energy density (SED) averaged over a structural volume is reformulated to estimate the lifetime of notched components subjected to variable amplitude (VA) uniaxial fatigue loading. The accuracy and reliability of the proposed reformulation of th...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2019-01-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero47/numero_47_art_28.pdf |
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| _version_ | 1832544769572601856 |
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| author | Zheng Hu Filippo Berto Luca Susmel |
| author_facet | Zheng Hu Filippo Berto Luca Susmel |
| author_sort | Zheng Hu |
| collection | DOAJ |
| description | In the present paper, the approach based on the strain energy density (SED) averaged over a structural volume is reformulated to estimate the lifetime of notched components subjected to variable amplitude (VA) uniaxial fatigue loading. The accuracy and reliability of the proposed reformulation of the SED approach was checked against a large number of data taken from the literature and generated, under two different load spectra, by testing specimens of carbon steel C40 containing notches of different sharpness. Such a validation exercise allowed us to demonstrate that the extension of the SED approach as proposed in the present paper is capable of accurately estimating fatigue damage in notched components subjected to inservice VA fatigue loading |
| format | Article |
| id | doaj-art-9f3b67fe054341b7aea7704e1c116a69 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-9f3b67fe054341b7aea7704e1c116a692025-02-03T09:42:17ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-01-01134738339310.3221/IGF-ESIS.47.2810.3221/IGF-ESIS.47.28The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loadingZheng HuFilippo BertoLuca SusmelIn the present paper, the approach based on the strain energy density (SED) averaged over a structural volume is reformulated to estimate the lifetime of notched components subjected to variable amplitude (VA) uniaxial fatigue loading. The accuracy and reliability of the proposed reformulation of the SED approach was checked against a large number of data taken from the literature and generated, under two different load spectra, by testing specimens of carbon steel C40 containing notches of different sharpness. Such a validation exercise allowed us to demonstrate that the extension of the SED approach as proposed in the present paper is capable of accurately estimating fatigue damage in notched components subjected to inservice VA fatigue loadinghttp://www.gruppofrattura.it/pdf/rivista/numero47/numero_47_art_28.pdfStrain energy density Notch Variable amplitude loading |
| spellingShingle | Zheng Hu Filippo Berto Luca Susmel The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading Fracture and Structural Integrity Strain energy density Notch Variable amplitude loading |
| title | The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading |
| title_full | The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading |
| title_fullStr | The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading |
| title_full_unstemmed | The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading |
| title_short | The Strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading |
| title_sort | strain energy density to estimate lifetime of notched components subjected to variable amplitude fatigue loading |
| topic | Strain energy density Notch Variable amplitude loading |
| url | http://www.gruppofrattura.it/pdf/rivista/numero47/numero_47_art_28.pdf |
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