Abstract

This paper presents a procedure using continuum damage mechanics to predict the creep-fatigue life of mechanical system components. Probabilistic life prediction of mechanical system components requires the modeling of multiple complex random phenomena. This paper develops a simulation-based stochastic approach for this purpose, using loading history and material properties as basic uncertain quantities. The interaction effect between different fatigue loading levels and between fatigue and creep are considered. The loading sequence effect is considered during the procedure of damage evaluation. Different methods for including mean stress effect are investigated. Probabilistic fatigue and creep life prediction for a generic aircraft jet engine blade is illustrated through a numerical example.

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 call

Disclaimer: 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.