Abstract
The paper presents a versatile and efficient technique, the weight function method, for calculating stress intensity factors for cracks in thermal stress fields. A unified analytical approach to the derivation of closed-form weight functions for various crack geometries is outlined. To facilitate engineering applications, analytical expressions of stress intensity factors for several basic crack face load cases, including power stress distributions and a linear-varying stress segment are presented. These results, when coupled with the superposition principle, enable stress intensity factors under arbitrary loadings to be accurately determined with minimum effort. To illustrate the approach, the weight function method is used to solve a variety of two- and three-dimensional thermal crack problems. Particular attention is given to verify the accuracy of the derived weight functions and stress intensity factors, by checking with those in the literature obtained with other methods. The unique efficiency and simplicity of the weight function method in analyzing thermal crack problems, especially for parametric studies, are demonstrated.
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.
