Abstract
The effect of plate thickness on the propagation rate of a mode I surface crack under biaxial stresses by the simultaneous action of plane bending and cyclic torsion was examined, and the crack opening displacement COD was measured by magnifying a scanning electron micrograph 15000 times. The relationship between the propagation rate da/dN and the stress intensity factor rangeΔK depends on both the biaxial stress ratio C and the maximum principal stress amplitudeσ1. COD measured under the same conditions ofσ1 and crack length increases with the decrease in C. A unique relationship is obtained between da/dN and crack tip opening displacement CTOD, irrespective of C and σ1. Thus, it can be concluded that the main factor which controls da/dN is CTOD.
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.
