Thermal stress intensity factor expressions for functionally graded cylinders with internal circumferential cracks using the weight function method

Transient Stress Intensity Factors of Functionally Graded Hollow Cylinders with Internal Circumferential Cracks

“…Seifi (Seifi Latin American Journal of Solids and Structures 13 (2016) 1738-1762 2015) calculated residual stresses for autofrettaged FG cylinders and obtained SIFs at the deepest and surface breaking points of a semi-elliptical axial crack using the weight function approach. The first two authors have applied the weight function method to FG cylinders with internal circumferential cracks under mechanical and thermal loads and have shown the accuracy of the method in predicting the SIFs (Eshraghi & Soltani 2015a;Eshraghi & Soltani 2015b). A domain form of the Jintegral for axisymmetric FG cylinders was used in their works to obtain reference SIFs from the FE analysis results.…”