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Out-of-phase thermo...
Out-of-phase thermomechanical fatigue crack propagation in a steam turbine steel — modelling of crack closure
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- Azeez, Ahmed, 1991- (författare)
- Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten
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- Norman, Viktor, 1988- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Eriksson, Robert, 1982- (författare)
- Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten
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- Leidermark, Daniel, 1980- (författare)
- Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten
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- Moverare, Johan, 1973- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: International Journal of Fatigue. - : Elsevier. - 0142-1123 .- 1879-3452. ; 149
- Relaterad länk:
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https://doi.org/10.1...
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https://liu.diva-por... (primary) (Raw object)
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Understanding of crack growth behaviour is necessary to predict accurate fatigue lives. Out-of-phase thermomechanical fatigue crack propagation tests were performed on FB2 steel used in high-temperature steam turbine sections. Testing results showed crack closure where the compressive part of the fatigue cycle affected crack growth rate. Crack closing stress was observed to be different, and had more influence on the growth rate, than crack opening stress. Crack growth rate was largely controlled by the minimum temperature of the cycle, which agreed with an isothermal crack propagation test. Finite element models with stationary sharp cracks captured the crack closure behaviour.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Nyckelord
- Thermomechanical fatigue
- Fatigue crack growth
- High temperature steel
- Crack closure
- Numerical modelling
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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