Finite element, critical-plane, fatigue life prediction of simple and complex contact configurations

Determination and prediction of the fretting crack initiation: introduction of the (P, Q, N) representation and definition of a variable process volume

“…The use of the SWT criterion for fretting is now well documented (see for example [15,16,21]). Thus, only the general equation is reproduced here.…”

“…Until now the main method used to describe quantitatively crack nucleation deals only with the mechanical state under the fretting conditions and relies on computing a multiaxial fatigue criterion (this was first attempted by Petiot et al [12]). This can be done either by using analytical solutions of the stress/strain state under fretting contact (as it can be found in [13]), or more recently by numerous author with finite elements [10,14,15]. The latter method is more constrained but allows one to test * Electronic address: henry.proudhon@ec-lyon.fr † Corresponding author.…”

An investigation of contact stresses and crack initiation in spur gears based on finite element dynamics analysis

“…Rolling contact fatigue is typically a multiaxial fatigue mechanism, for which several methods have been developed: examples of such methods include the Smith-Watson-Topper (SWT) method and Coffin-Manson hypothesis [16][17][18][19][20].…”

A combined wear-fatigue design methodology for fretting in the pressure armour layer of flexible marine risers

“…Sum et al [38] showed that mesh refinement and a critical plane approach can capture stress gradient effects, associated with different contact cylinder-on-flat sizes [39 -40], similar to the volume averaging method used by other researchers [41]. This has been attributed to the inbuilt averaging of stresses and strains over FE reduced integration elements during FE analysis [38]. This methodology of Sum et al [38] was implemented in this work.…”

“…This has been attributed to the inbuilt averaging of stresses and strains over FE reduced integration elements during FE analysis [38]. This methodology of Sum et al [38] was implemented in this work.…”