Mode I Fatigue Crack Growth Under Biaxial Stress at Room and Elevated Temperature

Brown, MW; Miller, K. J.

doi:10.1520/stp36221s

Cited by 61 publications

(32 citation statements)

References 14 publications

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“…He investigated various biaxiality ratios. McClung et al later [1] revisited these investigations and reported the general trends found for R = 0 and R = À1 to be consistent with experimental data, McClung and Sehitoglu [24], Brown and Miller [42], Hoshide et al [47].…”

Section: Multiaxial Loadingmentioning

confidence: 52%

“…Research began with investigations of loading cases with fixed principal axes: Biaxial and proportional loading [42][43][44][45][46][47][48][49][50][51][52][53][54][55]. The common feature of most of these modelling approaches is that the driving force parameters are composed of two factors: a function of the crack length and the hardening exponent together with the ranges of the far-field loading.…”

Section: Multiaxial Loadingmentioning

confidence: 99%

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Effect of cyclic plastic strain on fatigue crack growth

Vormwald

2016

International Journal of Fatigue

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Section: Multiaxial Loadingmentioning

confidence: 52%

Section: Multiaxial Loadingmentioning

confidence: 99%

Effect of cyclic plastic strain on fatigue crack growth

Vormwald

2016

International Journal of Fatigue

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“…The in-plane constraint [96][97] can be most conveniently studied by considering a mode I crack and varying the magnitude and direction of the applied stress level parallel to the crack, Sx (Sy = Constant, Sz = 0). The cruciform geometry used to study this phenomenon is shown in Figure 12(a).…”

Section: Out-of-plane and In-plane Constraintmentioning

confidence: 99%

Recent advances in fatigue crack growth modeling

1996

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Recent advances in our understanding of fatigue crack growth processes and respective crack growth modeling techniques are reviewed. Much of the observed experimental behavior (such as the effects of notches, maximum applied stress, crack length, in-plane biaxiality, out-of-plane constraint, and transient loadings) can be explained based on crack closure concepts. Both Dugdale based models and finite element techniques have been utilized. However, so far neither approach has accounted for crystallographic slip effects, grain orientation effects, or microstructural barriers. A model for crack closure with two microscopic crystallographic slip directions is used to model microscopic cracks. The model predicts variations in closure levels as the orientations of the two slip directions, with respect to the crack growth direction, are changed. In addition, a solution is proposed for the asperity micro-contact problem through a unique roughness induced closure model using a statistical description of asperity heights, asperity densities, and material flow properties. Nomenclature A,B,D----a b = C C ! 61 = C = CCT = CT = di = da/dN = d~P = d-6 = E = .0 P P Ex ~ Ez

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“…This creates a reversed (or cyclic) plastic zone ahead of the crack tip within the monotonic plastic zone [9,10]. Further works relating the fatigue crack growth rate to plastic zones relied on using this ideology of a reversed plastic zone [11,12]. It was determined that a larger reversed plastic zone size would cause an increase in the fatigue crack growth rate.…”

Section: Introductionmentioning

confidence: 99%