A comparative analysis between multiaxial stress and ΔK-based short crack arrest models in fretting fatigue

Fretting fatigue tests on shrink-fit specimens and investigations into the strength enhancement induced by deep rolling

“…This problem can be solved after fixing one side of the contact bridge to the rigid part of the testing frame. This solution has been reported by McVeigh et al [1], Rossino et al [19], Araújo et al [20], Lykins et al [21,22], Szolwinski and Farris [23], and others. The contact configuration of bridge type testing may be Hertzian, cylindrical to flat [24,25,23], or even sphere to flat [26], while sharp complete contacts without rounded corners have recently been proposed by Hojjati-Talemi et al [27], Giner et al [28] and Noraphaiphipaksa et al [29].…”

“…The modelling approaches to fretting fatigue are summarised by Nowell et al [34], Hills et al [35] and are: analogies either with crack or notch, Ciavarella [36][37][38] and Naboulsi [39]; asymptotic approaches both for complete and incomplete contacts, Dini, Nowell, Hills et al [34,35,[40][41][42][43]; short crack arrest on the KitagawaTakahashi (KT) diagram, Araújo et al [19,20,44] and Vallelano et al [45]; and finally a multiaxial fatigue critical plane approach, usually associated with a material size in order to incorporate the gradient effect, Araújo et al [19,20,46]. Of these approaches, crack arrest implicitly assumes that fretting is a tensile driven fatigue mechanism, indeed the reference threshold Stress Intensity Factor (SIF) is according to the mode I, which is the opening mode.…”

An investigation of fretting fatigue in a circular arc dovetail assembly

“…Thus local multiaxial fatigue criterions may provide over-conservative predictions for they do not account for the sharp stress gradient effects [22]. A number of prediction approaches have been developed to take the stress gradients into account which can be broadly divided into two categories, namely (i) non-local approaches such as theory of critical distance (TCD) [23], volume averaging approach [24,25] and weight function method [26]; (ii) short crack arrest methods [27,28] based on the linear elastic fracture mechanics. The TCD which has been widely used for notched specimens in plain fatigue can be used in conjunction with any conventional multiaxial fatigue criterion.…”

“…As an alternative approach, the concept of short crack arrest firstly proposed by Araújo and Nowell [27] has been applied to deal with the stress gradient effect. A comparative analysis between the multiaxial stress and the stress intensity factor based short crack arrest methodology was carried out by Araújo and Castro [28]. This approach is somewhat attractive since it relies only on standard material parameters obtained from plain fatigue experiments.…”

A multiaxial stress-based critical distance methodology to estimate fretting fatigue life

“…[3, [25][26][27][28][29] due to the similarities between notch and fretting fatigue. In both problems, the stress fields are characterized by stress gradients and multiaxial stresses.…”