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fatigue crack

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540379
EISBN: 978-1-62708-309-6
...Abstract Abstract This appendix presents an analytical model that estimates damage rates for both crack initiation and propagation mechanisms. The model provides a nonarbitrary definition of fatigue crack initiation length, which serves as an analytical link between initiation and propagation...
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Published: 01 November 2012
Fig. 58 Influence of texture on fatigue crack growth in Ti-6Al-4V. Fatigue crack growth rates are higher when basal planes are loaded in tension. The elastic modulus in tension for the basal texture (B) is 109 GPa (15.8 × 10 6 psi); for the transverse texture (T), 126 GPa (18.3 × 10 6 psi More
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Published: 01 August 2005
Fig. 5.40 Fatigue crack growth behavior of 7075-T6 aluminum under remote and crack-line loading conditions. Source: Ref 5.41 More
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Published: 01 October 2011
Fig. 16.24 Fatigue failure surface from a piston rod. The fatigue crack initiated near a forging flake at the center and propagated slowly outward. The outer area is the region of final brittle fracture overload. Source: Ref 16.5 More
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Published: 01 October 2011
Fig. 7.25 Fatigue crack growth per fatigue cycle ( da / dN ) versus stress intensity variation ( Δ K ) per cycle. The C and n are constants that can be obtained from the intercept and slope, respectively, of the linear log da / dN versus log Δ K plot. This equation for fatigue crack More
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Published: 01 December 2003
Fig. 3 Thermal fatigue failure and conventional fatigue crack propagation fracture during reversed load cycling of acetal. Source: Ref 10 More
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Published: 01 October 2012
Fig. 5.11 Scatter-band comparison of fatigue crack growth rate behavior of wrought β-annealed Ti-6Al-4V to cast and cast plus hot isostatic pressed HIP Ti-6Al-4V data. Source: Ref 5.7 More
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Published: 01 December 1999
Fig. 3.17 Variation of fatigue-crack initiation lives with residual stress at the notch of tested steels. Surface carbon: 0.95 to 1.05%. Hardness 750 to 780 HV. Crack initiation, 5 μm crack at the notch. Source: Ref 25 Steel Carbides Retained austenite Vol% Diameter, μm Spacing More
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Published: 01 December 1999
Fig. 6.39 Composite shear stress range gradient. Fatigue-crack initiation in carburized and hardened gears controlled by the 45 shear stress in zones I and III and by the orthogonal shear stress in zone II. P 0 , maximum pressure at the surface; b, half the contact width. Source: Ref 53 More
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Published: 01 December 1999
Fig. 7.14 Variation of fatigue-crack initiation lives with residual stress at the notch of tested steels. Source: Ref 27 More
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Published: 01 September 2005
Fig. 10 Intergranular bending fatigue crack initiation at the surface of a gas-carburized and direct-cooled SAE 8719 steel specimen. Source: Ref 20 More
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Published: 01 September 2005
Fig. 15 Elongated manganese sulfide particles associated with bending fatigue crack initiation at the surface of a gas-carburized SAE 8219-type steel. SEM photomicrograph. Source: Ref 20 More
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Published: 01 September 2005
Fig. 20 Bending fatigue crack initiation in gas-carburized and reheated 4320 steel. The dashed line corresponds to maximum depth of surface oxidation, and all fracture below dashed line is transgranular. Source: Ref 28 More
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Published: 01 March 2006
Fig. 11.54 Dramatic effect of low plasticity burnishing (LPB) on fatigue crack growth in a nickel-base turbine disk alloy. Source: Ref 11.67 More
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Published: 01 March 2006
Fig. 11.82 Tests to illustrate the importance of complete removal of fatigue crack if surface removal is to be effective in improving fatigue. Source: Ref 11.90 More
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Published: 01 March 2006
Fig. 12.21 Fatigue crack growth rates of eight polymers ( Ref 12.7 ); figure from Ref 12.8 More
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Published: 01 July 2009
Fig. 10.9 Histogram showing fractional fatigue crack-initiation life used to date of existing disks More
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Published: 01 June 1983
Figure 8.13 Schematic plot of fatigue crack growth rate data trends, illustrating the sigmoidal curve of da / dN vs. Δ K . More
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Published: 01 June 1983
Figure 8.14 Compliance method for fatigue crack growth rate measurements. More
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Published: 01 June 1983
Figure 8.15 Fatigue crack growth rate data for an Fe–21Cr–6Ni–9Mn steel, illustrating stress ratio effects at two test temperatures. More