Abstract
Abstract This paper proposes a new model for low cycle fatigue of metal alloys based on material sensibility to non-proportionality of loading. The model was examined by application to the prediction of the fatigue life in proportional and non-proportional low cycle fatigue tests for type BT1-0 titanium alloy. Tests were carried out in accordance with the plan of bifactorial experiment with three levels Mises’ strain: 0.7%, 0.9%, 1.1% and at three levels of non-proportion factor expressing the severity of non-proportional straining – 0, 0.5, 1. All the tests were carried out at room temperature. It was determined that additional hardening for non-proportional path tests is insignificant for BT1-0. Also proposed model was examined by tests for SNCM 630, Inconel 718, type 08X18H10T stainless steel, type BT9 titanium alloy. The model successfully correlated most of all fatigue data for all materials. The results showed that the model gave almost the same error both at proportional and non-proportional loading.
Sign-in/Register to access full text options 
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.
