Abstract
Tensile tests of Ti-6Al-4V and S45C plates with a hole were performed, and the characteristics of deformation near the hole were investigated through finite-element analysis. To clarify the crack initiation conditions, the relationship between the deformed shape of the notch and the equivalent plastic strain at the crack initiation is calculated. The main results are summarized as follows. (1) The critical equivalent plastic strain of a notch root for a crack initiation is determined by the value of notch root radius ρ alone, independent of notch depth. (2) Fact (1) can be explained through similarity of relative equivalent plastic strain distributions. (3) The deformation parameter h/d (h : height of circular hole after deformation, d : diameter of the hole) calculated by FEM is in good agreement with the experimental result in the range where no crack is initiated inside a plate in Ti-6Al-4V or no large deformation of the inhomogeneous structure including small cracks occurs in S45C.
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 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.
