Abstract
This paper presents the stress intensity factors for a large range of quasi semi-elliptic circumferential cracks in pipes of finite lengths. The cracks are positioned in a plane perpendicular to the pipe centerline and open out into the inside skin. The loads applied were constant tensile loads, overall bending loads and 1st, 2nd and 3rd degree bending loads in the pipe thickness. The crack depth/width ratio ( a c ) varies from 0.48 to 0.06, the depth/pipe thickness ratio ( a t ) varies from 0.42 to 0.8, the pipe inside radius/thickness ratio ( Ri t ) varies from 4.5 to 19.5, the majority of results being given for Ri t = 9.5 . The stress intensity factors were calculated using solid three-dimensional finite elements. The models used approximately 3600 degrees of freedom and quadratic elements. The stress intensity factors were evaluated by a virtual extension method.
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.
