Abstract
Near-threshold fatigue crack propagation rates have been measured in an aluminium bronze alloy using four different test methods: conventional load shedding; load shedding at constant K max ; stress-relief annealing and the testing of inherant surface defects. All four methods gave the same results, both for the threshold stress intensity factor, ΔK th , and for crack propagation rates in the near-threshold regime. It has been suggested by a number of authors that experimental results in this regime are strongly influenced by stress history and defect type. The present series of tests shows that this is not the case for this alloy; this provides evidence for the validity of the stress intensity threshold as an engineering parameter.
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.
