Failure Assessment Diagrams of Semi-Elliptical Surface Crack with Constraint Effect
For accurate failure assessment, a second parameter like T-stress describing the constraint is needed in addition to the single parameter J-integral. In this work, selecting the structures of surface-cracked plate and pipe, we perform line-spring finite element modeling, and accompanying elastic-plastic finite element analyses. We then present a framework, which includes the constraint effects in the R6 FAD approach for failure assessment of cracked-structures.
Yu Zhou, Shan-Tung Tu and Xishan Xie
H. Y. Lee et al., "Failure Assessment Diagrams of Semi-Elliptical Surface Crack with Constraint Effect", Key Engineering Materials, Vols. 353-358, pp. 98-101, 2007