Abstract
Plane bending and cyclic torsion tests, and a combination of them are carried out using aged cracked specimens made of carbon steel under the condition of a stress ratio R=-1. Taking account of the residual compressive stress around the crack in Model I and the friction stress acting on the crack surface in Model II, and adopting the criterion that and aged crack begins to propagate when the circumferential principal stress range reaches a critical value peculiar to the material, the threshold condition of micro fatigue crack propagation under a mixed mode can be deduced from the results of plane bending and cyclic torsion tests.
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 callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A
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.
