Abstract
Aiming at short crack (SC) behavior whose growth rate (da/dN) decreased firstly and subsequently increased with the rise of SC in EH36 steel, the crack transition length (at) concept was introduced to divide SC into 3 stages: microstructurally short crack (0–at), transition zone (at–0.5 mm) and physically short crack (0.5–1.5 mm). Then geometrically necessary dislocation density was utilized to reveal strain hardening gradient effect on SC behavior. Eventually, considering crack closure, the effective stress intensity factor range (ΔKeff) and the ΔKeff when SC was equal to at (ΔKat) were obtained to form a segmented model to demonstrate da/dN of whole SC.
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 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.
