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Weibull distribution

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001732
EISBN: 978-1-62708-218-1
.... The Weibull distribution is the statistical model used as a basis for these techniques. This method of failure analysis provides the engineer with clear, positive design direction. Door lock assembly Fatigue (materials) Statistical analysis Weibull distribution Metal (Other, miscellaneous...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001596
EISBN: 978-1-62708-225-9
... on the modified Goodman diagram in Fig. 10 . The fatigue data were plotted on a Weibull plot and a model was developed using the inverse power law or Power-Weibull Model. 11 , 12 The underlying life distribution, f (T; σ ) , of the Inverse Power Law is assumed to be consistent with a Weibull...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003514
EISBN: 978-1-62708-180-1
... positive and for which the area is unity qualifies for a PDF, but there are standard functions, or distributions, that are commonly used in engineering practice. Some of these are the normal, lognormal, extreme value, and Weibull distributions. The PDF and CDF for these distributions are defined as follows...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001005
EISBN: 978-1-62708-215-0
... Fracture surface of steering arm showing characteristic beach marks Fig. 5 Oxide scale inclusions forged into the inner radius of the steering arm Fig. 2 Fractured steering arm Fig. 6 Weibull analysis of the depth of forged-in oxide scale Fig. 7 Statistical frequency...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
.... , Burnett T.L. , Fellowes J. , Donoghue J. , Yan P. , and Withers P.J. , The Heterogeneous Distribution of White Etching Matter (WEM) around Subsurface Cracks in Bearing Steels , Acta Mater. , Vol 174 , 2019 , p 300 – 309 10.1016/j.actamat.2019.05.052 72. Gould B...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
... scatter and ranged from 3 to 6 kN (corresponding to the maximum Hertz contact pressure of 14 and 18 GPa, or 2.0 and 2.6 × 10 6 psi). The ring crack initiation load is much smaller than the crushing load and approximately follows two-parameter Weibull distribution, with a shape parameter ranging from 9...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... situation, including the loads and the distribution of stresses within the configuration. Is there an additional load/stress that was not included in the analysis, which changes the stress distribution? Or is the stress analysis incorrect? In many cases, however, stress analysis alone is not sufficient...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
... ). The cracks continue to propagate under repeated stress until heavy pitting or spalling takes place ( Fig. 5 ). Fig. 3 Stress distribution in contacting surfaces due to rolling, sliding, and combined effect Fig. 4 Gear-tooth section. Rolling-contact fatigue. Crack origin subsurface...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... F , is: (Eq 8) lg N P F = lg N 50 + s · u The quantile (safety span), u , depends on the type of distribution (e.g., Gauss, Weibull, logit, arc sin p ) and the failure probability. Table 2 shows u -values for different failure probabilities for the most...