Experimental and numerical fretting fatigue using a new test fixture

An applied approach for estimating fretting fatigue lifetime of dovetail joints using coupon scale test data

“…Fretting fatigue testing is often combined with Finite Element Modelling (FEM) in order to better understand the stresses inside the test specimen under fretting fatigue conditions [19][20][21], and develop mathematical models capable of estimating the lifetime of components affected by fretting fatigue [22,23]. A well-established lifetime prediction method takes advantage of the multiaxial damage criteria and a critical plane approach, using Smith-Watson-Topper (SWT) [20], Fatemi-Socie (FS) [24] or Findley [25] parameters to estimate the lifetime of investigated elements. This technique defines a critical plane along a contact surface where a combination of stresses and strains, specific for each damage parameter, is the highest, and relates this value to the number of fatigue cycles required for failure.…”

Experimental and computational investigation of fretting fatigue characterized by nominal contact pressure in dovetail structures

“…[13][14][15] Since fretting mechanisms significantly reduce the service life of components, fretting fatigue has been an enduring research topic in the structural integrity community for decades. [16][17][18][19][20] According to the investigation by Collin et al, 21 the main parameters affecting fretting fatigue can be summarized into different categories: Relative slip amplitude, contact pressure distribution, local stress state, surface material conditions, and other aspects of material fatigue, including frequency, temperature, number of cycles, and environments. Fretting wear is another significant aspect affecting fretting damage.…”

“…Especially for engineering design, the fretting fatigue assessment based on conventional fatigue models becomes difficult due to local extreme stress concentrations and complex constitutive behavior 13–15 . Since fretting mechanisms significantly reduce the service life of components, fretting fatigue has been an enduring research topic in the structural integrity community for decades 16–20 …”

“…To evaluate the fretting fatigue life of these complex structures, different methods were applied including multiaxial fatigue models, stress invariants, and fracture mechanics 17,25 . Sunde 18 adopted a simple test assembly to reduce misalignment. Both critical plane and critical distance criteria were studied.…”

Structural integrity of shot peened Ti6Al4V specimens under fretting fatigue

“…Although some attempts to simulate the above complex configuration (i.e. dovetail connection) are available in the literature (Papanikos and Meguid 1994;Papanikos et al 1998;Chan et al 2001a, b;Rajasekaran and Nowell 2006;Calcaterra and Golden 2006;Murugesan and Mutoh 2014;Yang et al 2018;Mangardich et al 2019;Pereira et al 2020;Sun et al 2020;Sunde et al 2021;Yuan et al 2021), experimental investigation of full scale models still provides more realistic information, even if such an investigation is costly and lengthy. In this context, it seems important to the authors a deep understanding of fretting fatigue process but analysing a simpler configuration, where material and treatment of the tested specimens are those typically employed in aero engine manufacturing.…”