Abstract
This study presents the temperature evolution of dual-phase steel in the prediction of the fatigue crack growth rate under block spectrum loading. The degradation coefficient that can be determined from the degradation-entropy generation theorem can be obtained based on the relationship between entropy generation and crack growth. The fatigue crack growth rate under block spectrum loading was then evaluated using the measured surface temperature evolution of the specimen during a fatigue crack growth test. The results of the present model were then compared with experimental fatigue data and the correlation coefficient $$(R^{\mathrm {2}})$$ in all conditions was observed to be more than 0.8. Therefore, the results show that entropy generation of the specimen is a reliable parameter in predicting fatigue crack growth rate under block spectrum loading using the intensity of the degradation coefficient.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
