Abstract
AbstractThe project has been concerned with the verification of the J‐philosophy for initiation and growth of cracks on laboratory type specimens as well as on larger surface cracked plates. The analysis of the experiments involved extensive fully three‐dimensional finite element calculations. It was found that the initiation events for the six surface cracked plates occurred at approximately the same J‐value. A corresponding relation to the laboratory type specimen was less successful, mainly because of the short‐comings of current methods for JIC‐evaluations. A somewhat puzzling feature of the surface crack experiments was that unstable crack growth occurred immediately after crack growth initiation in four out of six tests, while some amount of stable crack growth was evident in the remaining two and in all of the laboratory type specimens. An evaluation of the surface experiments by a type of R6‐analysis was also performed. Using as Kcr the mean value from the surface crack experiments, it was found that the R6‐method yielded conservative predictions.
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: Fatigue & Fracture of Engineering Materials & Structures
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.
