Abstract
Deformations far from the crack tip and plastic collapse at limit load may control the fracture of specimens fabricated from highly ductile materials. To investigate the behavior of test specimen under plastic fracture, this paper derives solutions for the limit load of the C(T) specimen based on slip-line analysis. The modified Green's solution gives the most accurate results. Analysis of test data for many types of metal materials shows that, after some initial crack extension, the specimens reach the limit load. Yet, previous investigators analyzed the resistance to crack extension in these specimens with J-R curves. The large plastic deformations and unloading of the material in the wake of crack extension violate the basic assumptions of J-integral, thus invalidating the J-R analysis. It is, therefore, necessary to perform limit load analysis in the investigation of ductile crack extension.
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.
