Abstract
Crack closure characteristics in fatigue crack growth were examined using the modified Dugdale model developed by Newman. The model can leave elastic-plastic asperities in the wake of the growing crack tip. The analysis shows the influence of the rigidity, E, of the asperities, asperity length, asperity thickness and the distance from the crack tip. The results are compared with the experiments. It is noted that the experimentally detected closure level can't give correct informations regarding actual one under some conditions. Especially, under corrosive environment, the crack closuer level is overestimated than the actual level. On the other hand, near threshold region in air environment, it is underestimated.
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.
