| Title: | Closed form expression for fatigue life prediction at combined HCF/LCF loading |
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| Authors: | ID Jelaska, Damir (Author)
ID Glodež, Srečko (Author)
ID Podrug, Srđan (Author) |
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| Files: |  http://facta.junis.ni.ac.rs/macar/macar200301/macar200301-11.html
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| Language: | English |
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| Work type: | Unknown |
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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: | For combined HCF/LCF loading, whose stress history is simplified so that it consists of one LCF stress block with a number of cycles equal to the number of start-up in-service operations and one HCF stress block with all HCF cycles summed-up, we derived the closed form expression for estimating both the crack initiation life and the crack propagation life at combined HCF/LCF loading. As an example of use, Smith and Haigh diagrams were obtained for titanium alloy (Ti-6Al-4V) components, which enable to estimate the fatigue strength for the designed fatigue life, known load ratio and certain number of HCF cycles per one combined stress block. |
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| Keywords: | machine elements, fatigue, service life prediction, crack initiation, crack growth, stress history |
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| Year of publishing: | 2003 |
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| PID: | 20.500.12556/DKUM-27721  |
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| UDC: | 621.833:539.388.1 |
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| ISSN on article: | 0354-2009 |
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| COBISS.SI-ID: | 8422422 |
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| NUK URN: | URN:SI:UM:DK:AUXGHOEE |
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| Publication date in DKUM: | 01.06.2012 |
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| Views: | 2858 |
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| Downloads: | 56 |
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| Metadata: |    |
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| Categories: | Misc.
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