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fatigue-life assessment

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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
... Abstract This article discusses the fundamental variables involved in fatigue-life assessment, which describe the effects and interaction of material behavior, geometry, and stress history on the life of a component. It compares the safe-life approach with the damage-tolerance approach, which...
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
... information on fatigue life assessment, elevated-temperature life assessment, and fitness-for-service life assessment. elevated-temperature life assessment fabrication failure analysis fatigue life assessment fitness-for-service life assessment material defects nondestructive inspection stress...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004128
EISBN: 978-1-62708-184-9
... parameters such as pit dimensions, surface roughness, loss of metal thickness, and volume increase due to pillowing to quantitatively characterize the types of corrosion. It also explains the two most common fatigue life assessment methods used in the military aerospace industry: fatigue crack initiation...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
.... The article discusses metallurgical instabilities of steel-based alloys and nickel-base superalloys. It provides information on several life assessment methods, namely, the life fraction rule, parameter-based assessments, the thermal-mechanical fatigue, coating evaluations, hardness testing, microstructural...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003382
EISBN: 978-1-62708-195-5
... discussion on the fatigue damage process, methodologies assessing fatigue behavior, and life prediction models. It describes the damage mechanisms introduced for a quasi-isotropic laminate under tension-compression fatigue loading. Delamination is a critical issue in fatigue and generally results from high...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001477
EISBN: 978-1-62708-173-3
... avoiding repair completely without impairing overall structural integrity. Finally, fitness-for-service assessment procedures can be used to predict the remaining life of components that are either subjected to fatigue loading or to a high-temperature creep regime. In these cases, assessment procedures...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... Abstract Thermomechanical fatigue (TMF) refers to the process of fatigue damage under simultaneous changes in temperature and mechanical strain. This article reviews the process of TMF with a practical example of life assessment. It describes TMF damages caused due to two possible types...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002413
EISBN: 978-1-62708-193-1
.... , Microstructural Assessment of Fractional Life Approach to Low Cycle Fatigue at High Temperatures , Metall. Sci. , Vol 13 , 1979 , p 25 – 33 10.1179/030634579790434132 57. Meleka A.H. , Combined Creep and Fatigue Properties , Metall. Rev. , Vol 7 , 1962 , p 43 – 93 58. Ellozy A.R...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003706
EISBN: 978-1-62708-182-5
... that could rapidly deplete the remaining service-life capability. The AFGROW software program and the ECLIPSE software program (APES, Inc.) (a custom-made tool that reflects the holistic assessments advocated here) were used to predict pristine fatigue lives and corroded fatigue lives for riveted...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002384
EISBN: 978-1-62708-193-1
... to be assessed on a fitness-for-service basis. Using this concept, a structure is considered fit for the intended service if it can operate safely throughout its design life. The adoption of fitness-for-service concepts in several industry standards has resulted in the development of rigorous fatigue...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002350
EISBN: 978-1-62708-193-1
... Mechanisms and Life Assessment of High Temperature Components , ASM International , 1989 , p 119 33. Langraf R.W. , The Resistance of Metals to Cyclic Loading , Achievement of High Fatigue Resistance in Metals and Alloys , STP 467, ASTM , 1970 , p 24 34. Bannantine J.A...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006462
EISBN: 978-1-62708-190-0
... military nuclear power life assessment commerial nuclear power pressure vessels fired boilers NONDESTRUCTIVE TESTING (NDT) and nondestructive evaluation (NDE) use noninvasive measurement techniques to gain information about defects and various properties of materials, components, and structures...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002371
EISBN: 978-1-62708-193-1
... of the effect of residual stresses and provides guidance to assess their potential influence on crack propagation data. In contrast, actual hardware may contain residual stresses and related gradients due to processing such as surface hardening methods or shot peening. Mean stresses influence fatigue life...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002407
EISBN: 978-1-62708-193-1
... Fatigue Results of Various Cast Aluminum Wheels , AFS Trans. , Vol 98 , 1987 , p 681 – 688 23. Skallerud B. , Fatigue Life Assessment of Aluminum Alloys with Casting Defects , Eng. Fract. Mech. , Vol 44 ( No. 6 ), 1993 , p 857 – 874 10.1016/0013-7944(93)90108-5 24. Reinhart...
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
... in high-temperature applications. The complex effects of creep-fatigue interaction are also discussed, although more detail on this is described in the article “Thermomechanical Fatigue: Mechanisms and Practical Life Analysis” in this Volume. Life assessment is also covered in the article “Elevated...
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
... Abstract This article provides information on life assessment strategies and conceptually illustrates the interplay of nondestructive evaluation (NDE) and fracture mechanics in the damage tolerant approach. It presents information on probability of detection (POD) and probability of false alarm...
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
... failures of alloys used in high-temperature applications. The complex effects of creep-fatigue interaction are also discussed, although more detail on this is described in the article “Thermomechanical Fatigue: Mechanisms and Practical Life Analysis” in this Volume. Life assessment is also covered...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002396
EISBN: 978-1-62708-193-1
... stress field subsurface. Life improvements are possible by deepening the case. The optimal processing would result in equal failure likelihood at the surface and subsurface. It is common to assess residual stress effects on fatigue by treating them as mean stresses ( Ref 36 ). Their effectiveness...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002390
EISBN: 978-1-62708-193-1
... Table 1 Life-assessment techniques and their limitations for creep-damage evaluation for crack initiation and crack propagation Crack initiation Crack propagation Technique Issues Calculation Inaccurate Extrapolation of past experience Inaccurate Conventional NDE...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002472
EISBN: 978-1-62708-194-8
... of Temperature Variation on the Long-Time Rupture Strength of Steels , Trans. ASME , Vol 74 , 1952 , p 777 – 781 82. Woodford D.A. , A Critical Assessment of the Life Fraction Rule for Creep-Rupture under Nonsteady Stress or Temperature , Paper No. 180.1 , Int. Conf. on Creep and Fatigue...