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probabilistic estimates

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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
...Abstract Abstract This article describes the historical background, uncertainties in structural parameters, classifications, and application areas of probabilistic analysis. It provides a discussion on the basic definition of random variables, some common distribution functions used...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
... of false alarm (PFA). The article describes the damage tolerance approach to life management of cyclic-limited engine components and lists the commonly used nondestructive evaluation methods. It concludes with an illustration on the role of NDE, as quantified by POD, in fully probabilistic life management...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... in titanium fan disk resulted in fatigue crack initiation and catastrophic failure. Increased process controls on processing of titanium ingots Development of probabilistic design approach and analytical life assessment using dedicated computer programs for titanium disks Earthquakes in Kobe City, Japan...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
... under estimated, which led to low-cycle fatigue cracking earlier than expected. Fracture mechanics analysis of the disks was carried out to assess their damage tolerance and to predict safe inspection intervals. Fatigue life Fracture mechanics Gas turbine engines Jet planes Low-cycle fatigue...
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
... elastic fracture mechanics analysis, with some mention of elastic-plastic fracture mechanics analysis. The article describes the probabilistic aspects of fatigue and fracture. Information on crack-growth simulation of the material is also provided. crack-growth simulation elastic-plastic fracture...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... stress history and the material crack growth properties and geometry of the component. The resulting life estimate is then divided by a safety factor (usually two or three) to obtain the inspection interval for the component. Dividing by a safety factor ensures that the component will be inspected...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... not occur until 1982 ( Ref 2 ). The recommended practice to estimate a POD curve is outlined further in the article “Probability of Detection” in Nondestructive Evaluation of Materials , Volume 17 of ASM Handbook , 2018 ( Ref 3 ). Fig. 1 Illustration of a probabilistic concept of probability...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... Handbook , ASM International , 2000 , p 383 – 397 8. Neubauer B. and Wedel U. , Rest-of-Life Estimation of Creeping Components by Means of Replicas , Advances in Life Prediction Methods , American Society of Mechanical Engineers , 1983 , p 307 – 314 9. Brear J.M. et...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... performance of any one individual item of that group. Various statistical and probabilistic techniques can be used to make predictions, but these are predicated on having good databases. The meaning of the term “state of the art” should be defined for each specific product. This might be done by comparing...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
.... , A Review of Non-Destructive Techniques for the Detection of Creep Damage in Power Plant Steels , NDT & E Int. , Vol 43 ( No. 7 ), 2010 , p 555 – 567 , 10.1016/j.ndteint.2010.05.012 14. Neubauer B. and Wedel U. , Rest-of-Life Estimation of Creeping Components by Means...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... that that is not a workable distinction. Estimates of the yield strength of materials by simultaneous rupture of all of the bonds across a plane quickly were determined to be in serious disagreement with experimental observations and indicated that a different model had to be created to explain the discrepancy between...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
.... If there is no macro- or microscale evidence of deformation, it is tempting to assume brittle behavior. However, considerable evidence suggests that is not a workable distinction. Estimates of the yield strength of materials by simultaneous rupture of all of the bonds across a plane quickly were determined...