A quantitative evaluation of ΔKeff estimation methods based on random loading crack growth data

The fatigue crack growth behaviour of 2524‐T3 aluminium alloy in an Al2O3 particle environment

“…; however, caused by the inhomogeneous deformation and environmental effects, a certain amount of crack closure will always occur, which leads to premature contact between the mating fracture surfaces at σ > σ min , especially at low values of R. Many studies hold that the FCGR, in real cases, depends on ΔK eff . 17,44 Many mechanisms concerning crack closure have recently been proposed 45,46 among which RICC was supposed to be dominant in 2xxx Al alloys. 47,48 Besides, our previous study 28 has also demonstrated that RICC affected the fatigue behaviour of 2524 Al alloy to a significant extent.…”