Fatigue crack propagation simulation in an aircraft engine fan blade attachment

Barlow, K.W.; Chandra, Ramesh

doi:10.1016/j.ijfatigue.2005.06.016

Cited by 67 publications

(31 citation statements)

References 18 publications

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“…A series of mechanical analysis and examination on a failed blade in gas turbine engine has been performed and nonlinear finite element to determine the stress of the blade, in order to identify the case of blade failure has been utilized (Hou et al, 2002;Beisheim & Sinclair, 2002). The efficacy of a fracture mechanics methodology to model the crack growth behaviour of fatigue nucleated cracks obtained under test conditions similar to those found in turbine engine blade attachments has been verified and Crack propagation lives has been calculated using stress results of FEM analysis (Hutson et al, 2005) the three dimensional fatigue crack in a typical military aircraft engine fan blade attachment by Franc3D has been simulated (Barlow & Chandra, 2005;Paris et al, 1961-3). Crack propagation trajectories under mixedmode conditions have obtained using the planner and maximum tangential stress crack extension criteria.…”

Section: Fig 2 Arrangement Of Blades Around Retaining Ringmentioning

confidence: 99%

Failure Investigation of Gas Turbine Generator Cooling Fan Blades by Experimental and Numerical Analysis

Jahangiri¹

2010

Gas Turbines

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Section: Fig 2 Arrangement Of Blades Around Retaining Ringmentioning

confidence: 99%

Failure Investigation of Gas Turbine Generator Cooling Fan Blades by Experimental and Numerical Analysis

Jahangiri¹

2010

Gas Turbines

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“…2.3). The maximum SIFs K max I and K max II at the crack tip of interest will then be evaluated by substituting the related displacement discontinuity in the DCT formulas (17). Unlike the case of quasi-static crack growth, a crack under cyclic loading conditions may propagate after a number of load cycles even when K max eff is much less than the mode-I fracture toughness K Ic .…”

Section: Paris Lawmentioning

confidence: 99%

“…As far as numerical methods are concerned, fatigue crack growth has been investigated using dual boundary element method (DBEM) (e.g., [7][8][9][10][11][12][13][14]), program FRANC3D (a BEM-based program) (e.g., [15][16][17]), displacement discontinuity method (e.g., [18,19]), multiregion BEM (e.g., [20]), and combined BEM/FEM (e.g., [21]). However, even though there was a variety of fatigue crack growth topics studied in the aforementioned work, none of them addressed the fatigue crack growth in particulate media.…”

mentioning

confidence: 99%

SGBEM modeling of fatigue crack growth in particulate composites

et al. 2009

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The symmetric-Galerkin boundary element method (SGBEM) has previously been employed to model 2-D crack growth in particulate composites under quasi-static loading conditions. In this paper, an initial attempt is made in extending the simulation technique to analyze the interaction between a growing crack and clusters of perfectly bonded particles in a brittle matrix under cyclic loading conditions. To this end, linear elastic fracture mechanics and no hysteresis are assumed. Of particular interest is the role clusters of inclusions play on the fatigue life of particulate composites. The simulations employ a fatigue crack growth prediction tool based upon the SGBEM for multiregions, a modified quarter-point crack-tip element, the displacement correlation technique for evaluating stress intensity factors, a Paris law for fatigue crack growth rates, and the maximum principal stress criterion for crack-growth direction. The numerical results suggest that this fatigue crack growth prediction tool is as robust as the quasi-static crack growth prediction tool previously developed. The simulations also show a complex interplay between a propagating crack and an inclusion cluster of different densities when it comes to predicting the fatigue life of particulate composites with various volume fractions.

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“…Singh et al (1998) proposed the formulation of universal crack closure integral to evaluate the energy release rates (ERRs) and the stress intensity factors (SIFs) around 3-D crack fronts. Cornell Fracture Group has developed the BEM code of FRANC3D, which can automatically simulate the propagation of 3-D cracks and has been widely applied in the fracture analysis (e.g., Rahman et al 2000;Dong and De Peter 2002;Barlow and Chandra 2005).…”

Section: Introductionmentioning

confidence: 99%