20.500.12556/RUL-163565 Application of thermoelasticity in the frequency-domain multiaxial vibration-fatigue criterion In vibration fatigue, high-spatial-density experimental damage identification is hard to conduct. Fatigue damage is typically localized (in time and space) and loads can change direction with time. Thermoelasticity studies the interaction between temperature changes and elastic deformations in materials: minute changes in temperature can be related to the sum of the normal stresses, providing information about the multiaxial stress state. This research discusses the application of thermoelasticity in multiaxial criterion resulting in the equivalent uniaxial load. In this research, the thermoelasticity-based equivalent uniaxial load is related to the established theory on vibration-fatigue damage estimation in the spectral domain. The introduced thermoelasticity-based criterion is compared to the Equivalent von Mises stress criterion. Building on theoretical, numerical, and experimental research, this work examines the limitations of thermoelasticity-based criterion. Where the surface shear stresses are significantly smaller than the normal stresses, the numerical and experimental research shows promising results. Based on the introduced thermoelastic multiaxial criterion and with the recent progress in thermal imaging and signal processing, new possibilities for a close-to-real-time full-field fatigue-damage estimation open up. thermoelasticity multiaxial criterion vibration fatigue modal decomposition termoelastičnost večosni kriterij vibracijsko utrujanje modalna razgradnja true false true Angleški jezik Slovenski jezik Članek v reviji 2024-10-09 09:16:07 2024-10-09 09:16:14 2024-10-11 03:22:43 0000-00-00 00:00:00 2025 0 0 15 str. Vol. 224, art. 112002 Jan. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.3:519.6 0888-3270 10.1016/j.ymssp.2024.112002 210773763 Sonc,_Zaletelj,_Slavic_-_Application_of_thermoelasticity_in_the_frequency-domain_multiaxial_vibration-fatigue_criterion.pdf Sonc,_Zaletelj,_Slavic_-_Application_of_thermoelasticity_in_the_frequency-domain_multiaxial_vibration-fatigue_criterion.pdf 1 BA6B9686A12BBDDC935DD6711A2F6E6D 1c8637af5abe5edd6ea5c83894774d27f5f421e017cb8360c8e89ca93c4e7598 8bc8876f-8611-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=193422 https://www.sciencedirect.com/science/article/pii/S0888327024009002 1 3123ddd9-860e-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=193365 Fakulteta za strojništvo 0 0 0