Abstract
The aim of this paper is to determine the coefficients of singular, T-stress and third terms of crack tip stress field for two disk-type specimens under wide range combinations of mixed-mode I/II loading. The first specimen is a centrally cracked circular disk subjected to diametral load (CCCD sample) and the second one is a semi-circular disk under three-point bending (SCB sample). Using finite element method, the stress intensity factors KI and KII are calculated for two samples and then the state of pure mode II loading is expressed for each specimen. As an important parameter to predict the fracture toughness of quasi-brittle materials taking into account the geometry effect, the sign and magnitude of term A3 are determined for both samples under pure mode I condition. It is found that the sign of A3 is negative for any configurations of SCB sample under pure mode I while its sign for CCCD can be negative or positive corresponding to the ratio of a/R.
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.
