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- Azeez, Ahmed,1991-Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten (author)
The effect of dwell times and minimum temperature on out-of-phase thermomechanical fatigue crack propagation in a steam turbine steel - Crack closure prediction
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- Elsevier Science Ltd,2022
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:liu-187284
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-187284URI
- https://doi.org/10.1016/j.ijfatigue.2022.106971DOI
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- Language:English
- Summary in:English
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Notes
- Funding Agencies: SIEMENS AG
- Exploring crack growth behaviour is needed to establish accurate fatigue life predictions. Cracked specimens were tested under strain-controlled out-of-phase thermomechanical fatigue conditions. The tests included dwell times and three different minimum temperatures. Higher minimum temperature gave faster crack growth rates while the additions of dwell times showed no effects. Crack closure was observed in all the tests where the addition of dwell times and change in minimum temperature displayed little to no effect on crack closure stresses. Finite element models with a sharp stationary crack and material parameters switching provided acceptable predictions for the maximum, minimum, and crack closure stresses.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Maskinteknik Teknisk mekanik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Applied Mechanics hsv//eng
- Thermomechanical fatigue; Fatigue crack growth; High temperature steel; Crack closure; Numerical modelling
Added entries (persons, corporate bodies, meetings, titles ...)
- Eriksson, Robert,1982-Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten(Swepub:liu)rober15 (author)
- Norman, Viktor,1988-Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten(Swepub:liu)vikno08 (author)
- Leidermark, Daniel,1980-Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten(Swepub:liu)danle89 (author)
- Moverare, Johan,Professor,1973-Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten(Swepub:liu)johmo31 (author)
- Linköpings universitetMekanik och hållfasthetslära (creator_code:org_t)
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- In:International Journal of Fatigue: Elsevier Science Ltd1620142-11231879-3452
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