Abstract
In the present study the problem of calculation of the stress intensity factors (SIF) of semi-elliptical cracks located in the shell and knuckle area of a pressure vessel is numerically solved by 3D Extended finite element method (XEFM) analysis. Crack also will be varied based on crack depth at constant elliptical ratio. The modeling details of the sub-structuring methodology, employed in the analysis, are discussed and the numerical approach is proven to be very efficient for the SIF calculation of pressure vessel semi-elliptical crack. Result of study show that crack with the same geometry, crack located in the shell has more tendency to propagate compare to crack located in the knuckle area. This phenomenon is due to stress at shell is dominated with tensile stress while in the knuckle area, stress is dominated with compressive stress.
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.
