.... 01 February 2002 04 09 2003 fatigue cracks bending stress analysis failure (mechanical) The Stress-Life method of life prediction is based on a stress versus life curve commonly referred to as the material S-N curve or the Wohler curve. S-N curves are generated...

... oxides near the surface, and Si segregated in grain boundary are observed. This demonstrates that they trigger fatigue crack initiation; and therefore defect size limits strength. Consequently, strength is expressed by an experimental formula of Vickers hardness and the square root of projected area...

...William T. Riddell A model for probabilistic growth of complex fatigue crack shapes that will be used to perform sensitivity studies and to optimize inspection intervals for railroad tank cars is presented. In this model, crack growth is based on results from a deterministic crack growth analysis...

... & Gearing Committee for publication in the JOURNAL OF MECHANICAL DESIGN . Manuscript received May 2000; revised Oct. 2000. Associate Editor: J. Gao. 01 May 2000 01 Oct 2000 fatigue cracks finite element analysis boundary-elements methods failure (mechanical) reliability stress...

...S. Baragetti; A. Baryshnikov Rotary shouldered connections (RSC), used in the oil and gas industries, are probably the most stressed components of the drill string because they are subjected both to make-up torque and to axial and bending loads. Since loads can vary and can result in fatigue crack...

... of total life. It will also be shown that gear bending fatigue lives for variable amplitude load tests are better predicted by a two-stage linear damage theory compared to the commonly used Miner’s total life linear damage theory. fatigue fatigue cracks stress effects acoustic emission elastic waves...