Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
775067 | International Journal of Fatigue | 2015 | 8 Pages |
Abstract
This paper describes a methodology used to compute stress intensity factor values along the curved front of a fatigue crack inside a nodular cast iron. An artificial defect is introduced at the surface of a small sample. The initiation and growth of a fatigue crack from this defect during constant amplitude cycling is monitored in situ by laboratory X-ray tomography. The method for processing the 3D images in order to compute SIF values is described in detail. The results obtained show variations of the stress intensity factor values along the crack front.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Joël Lachambre, Julien Réthoré, Arnaud Weck, Jean-Yves Buffiere,