Cyclic plastic behavior of dovetail under fretting load

Fretting Fatigue in Mechanical Joints: A Literature Review

“…Understanding the fundamentals of fretting fatigue and fretting contact is crucial not only from the scientific point of view, but also from the practical point of view since there have been numerous reports of failures involving a wide variety of common structural members [18][19][20][21][22][23][24][25][26][27] due to fretting damage. Press fitted joints, dovetail joints and bolted joints have been reported to be strongly affected by fretting fatigue, since they operate under quite high normal contact loads and vibrations during service, which triggers relative displacement.…”

“…For other types of materials, the diagram has to be obtained. In 2015, Da-Sheng et al [18] studied the possibility of carrying out a 2D FE analysis on dovetail joints in order to retrieve contact stresses considering the plastic behavior of the material. A viscoplastic constitutive model of the Ti-6Al-4V alloy based on the Chaboche theory [85] was used.…”

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.…”

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

“…The stress concentrations and uncertain manufacturing tolerances make the test results cannot be related to other structures. [8][9][10][11][40][41][42][43][44][45][46][47][48] Moreover, a fretting model based on a sophisticated constitutive model and damage evolution equations is too time consuming and not efficient enough for engineering design. In the turbine industry, fretting fatigue was assessed based on a simple estimate of the contact pressure over yield stress of the material.…”

“…The structural experiments should reconstruct failure processes in the real structures under similar loading conditions but suffered from complex stress distributions in the specimens and on contact surfaces. The stress concentrations and uncertain manufacturing tolerances make the test results cannot be related to other structures 8‐11,40‐48 . Moreover, a fretting model based on a sophisticated constitutive model and damage evolution equations is too time consuming and not efficient enough for engineering design.…”