... for evaluating stress concentration factors of wrinkle defects of varying geometries. A nonlinear finite element model is developed to evaluate stress concentration factors induced by wrinkle defects within steel pipelines subjected to internal pressure. Afterward, data from full-scale laboratory tests...

... in stress concentration factor calculations. In doing so, a design S-N curve can be calibrated with a given set of parametric equations selected to ensure that a conservative life design can be achieved in dealing with any potential discrepancies in hot spot stress calculations and data correlations using...