Accounting for anisotropic, anisothermal, and inelastic effects in crack initiation lifing of additively manufactured components
| العنوان: | Accounting for anisotropic, anisothermal, and inelastic effects in crack initiation lifing of additively manufactured components |
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| المؤلفون: | Lindström, Thomas, 1991, Nilsson, Daniel, Simonsson, Kjell, Professor, 1964, Eriksson, Robert, 1982, Lundgren, Jan-Erik, Leidermark, Daniel, 1980 |
| المصدر: | Fatigue & Fracture of Engineering Materials & Structures. 46(2):396-415 |
| مصطلحات موضوعية: | anisotropy, fatigue life prediction, low-cycle fatigue, thermomechanical fatigue, cycling |
| الوصف: | The crack initiation life of a ductile additively manufactured nickel-based superalloy is studied and modeled for low-cycle fatigue and thermomechanical fatigue conditions up to 600 degrees C. Isothermal experiments were performed on smooth specimens at temperatures up to 600 degrees C with different applied strain ranges. Additionally, thermomechanical fatigue experiments at 100-450 degrees C and 100-600 degrees C were performed on smooth specimens under in-phase and out-of-phase conditions. A life prediction model accounting for the anisotropy was developed, where the temperature cycle is accounted with a Delta T$$ \Delta T $$-functionality, generating good agreements with the experiments. The model was also validated on notched specimens undergoing thermomechanical fatigue conditions at 100-500 degrees C using simplified notch correction methods. |
| وصف الملف: | electronic |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-190108 https://liu.diva-portal.org/smash/get/diva2:1712945/FULLTEXT01.pdf |
| قاعدة البيانات: | SwePub |
| تدمد: | 8756758X 14602695 |
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| DOI: | 10.1111/ffe.13873 |