Abstract
An analytical model of fracture process zone (FPZ) was proposed to explore the intrinsic meaning of the “constant crack-tip opening angle (CTOA)” fracture criterion. A relationship between critical CTOA and the essential work of fracture (EWF) was then established. According to above relationship, critical CTOA is found to represent the critical state of FPZ. During stable crack growth, FPZ is fixed since stress state and material properties are changeless, and this is why “constant CTOA” works. In the case external boundary far from the FPZ, the FPZ will only depend on thickness and material properties, and then critical CTOA will own in-plane geometry transferability. In addition, the linear relationship between critical CTOA and local fracture strain is also explained.
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.
