Abstract

To examine the effect of fatigue cracks on the residual ultimate strength of 30CrMnSiA steel single lug and yoke joints for pontoons, we developed a residual ultimate strength J-A2 model. This model was constructed by applying fracture mechanics principles, and the law of decay of the residual ultimate strength of aging single lug and yoke joints with crack propagation was obtained. Using this model, the empirical relationships of the remaining ultimate strength engineering applications of a certain equipment joint were determined, and the rationality and practicality of the method were verified by combining fatigue tests and finite-element simulations. The results provide a foundation for further analysis of the influence of crack propagation on the ultimate strength of single lug and yoke joint structures.

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.