Abstract
Multiaxial fatigue life prediction under irregular loading is studied on two materials exhibiting shear fracture(SNM440, SNCM630). Fatigue tests are conducted at room temperature under tension-torsion, proportional and nonproportional loading with constant and variable amplitudes. The Kandil-Brown-Miller (KBM) parameter, the Smith-Watson-Topper (SWT) parameter and an energy-based parameter are used with the rainflow cycle counting method and Miner's rule of damage accumulation. The fatigue life is calculated based on the strain profiles on the critical plane for the KBM and SWT parameters and based on the maximum damage for the energy parameter. The energy-based parameter is found to provide best correlation with experimental lives. It was also found that the normal strain on the maximum shear strain plane does not affect fatigue life of SCM440 significantly.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Proceedings of the Asian Pacific Conference on Fracture and Strength and International Conference on Advanced Technology in Experimental Mechanics
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.