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fatigue crack propagation

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Published: 01 December 1993
Fig. 7 Fatigue crack propagation region of device in Fig. 6 . Crack propagated from upper left to lower right. More
Image
Published: 01 June 2019
Fig. 5 Fatigue crack propagation test More
Image
Published: 01 June 2019
Fig. 8 Representative striations observed within the fatigue crack propagation regions of each component. Magnification 5000× More
Image
Published: 01 December 2019
Fig. 3 Typical appearance of fatigue crack propagation and plastic deformation on different fillets More
Image
Published: 01 December 2019
Fig. 9 Fatigue crack propagation through the pipe metal. The internal surface of the pipe is shown on the upper left region. Propagation followed from the lower right to the upper left region More
Image
Published: 01 December 2019
Fig. 2 Global appearance of lateral surface: ( a ) fatigue crack propagating along different surfaces of the die and ( b ) SEM micrograph showing typical crack morphology on the side surface of the die More
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... during their lifetime. This article focuses on fractography of fatigue. It provides an abbreviated summary of fatigue processes and mechanisms: fatigue crack initiation, fatigue crack propagation, and final fracture,. Characteristic fatigue fracture features that can be discerned visually or under low...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... the hydrostatic design basis approach, Miner's rule, the Arrhenius model, and the Paris Law for fatigue crack propagation, are discussed. References References 1. Maxwell A. , Broughton W.R. , Dean G. , and Sims G. , Review of Accelerated Aging Methods and Lifetime Prediction...
Image
Published: 01 June 2019
Fig. 4 Fatigue crack initiation and propagation in the turbine blade sample. Arrow ‘O’ indicates initiation region and small arrows depict crack growth direction. (a) Initiation region; (b) Fatigue striations 0.1-mm from crack initiation region; (c) Crack growth bands 1-mm from crack More
Image
Published: 01 June 2019
Fig. 7 Ductile fatigue striations, crack propagation zone of Figure 5 . More
Image
Published: 01 December 2019
Fig. 8 Propagation of fatigue crack from the wire tip at the detached part of the wire–pipe welded connection. Propagation was irradiated from the wire spacer through the weld metal More
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... propagation in different environments. The article concludes with a discussion on rolling-contact fatigue, macropitting, micropitting, and subcase fatigue. corrosion fatigue crack growth crack initiation damage tolerance criterion fatigue fracture fatigue strength fatigue-crack propagation finite...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001511
EISBN: 978-1-62708-227-3
... heat treating following forging, it was surmised that the defect led to the propagation of an internal brittle crack, or clink. A fatigue crack propagated from this origin to the outer surface of the shaft after about a year of service. Finally a last ligament of a few square inches held the shaft...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0048535
EISBN: 978-1-62708-218-1
... Abstract A stick-shift from an automobile transmission failed in service. Failure occurred by stable fatigue crack propagation at locations R and L. Plausibly, the crack initiated at location R due to maximum tensile stress, which was perhaps further concentrated by a surface imperfection...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... describes the general features of fatigue fractures in terms of crack initiation and fatigue crack propagation. brittle fracture crack initiation creep fracture deformation ductile fracture failure analysis fatigue crack growth fatigue crack propagation fatigue fracture fractography fracture...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001849
EISBN: 978-1-62708-241-9
... crack propagation pattern (beach marks) and radial chevron marks indicating the occurrence of final overload through a brittle intergranular fracture. The collected evidence suggests that surface-initiated cracks propagated by fatigue led to spalling, resulting in severe work roll damage as well...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001028
EISBN: 978-1-62708-214-3
.... Fig. 7 SEM micrographs of the right side of the outer fracture surface after opening. (a) Extent of fatigue crack propagation on the outer fracture surface, right side. 15×. (b) Shape and pattern of the thumbnail at arrow F in Fig. 8 . 190×. (c) Extensive rubbing on the upper portion...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001360
EISBN: 978-1-62708-215-0
... from type 301 stainless steel in the extra full hard tempered condition with a hardness of 47 HRC. Failure analysis indicated that the blade fractured in three modes: crack initiation, fatigue crack propagation, and final rapid fracture in a ductile manner The fatigue crack originated near a rivet hole...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001368
EISBN: 978-1-62708-215-0
... of subsurface flaws. Concentric markings around flaws indicate that crack propagation occurred by torsional fatigue. 0.63× Fig. 4 Subsurface flaw near ridges. (a) Subsurface flaw and fatigue crack. 2×. (b) Ridges separating the fatigue crack from the subsurface flaw. 11.56×. (c) Fracture surface...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001370
EISBN: 978-1-62708-215-0
... as a result of corrosion fatigue. Crack propagation occurred either by corrosion or mechanical fatigue. Evidence was found indicating high rotary bending stresses on the shaft during operation. The nonstandard composition of the En 8 steel used in the shaft and irregular maintenance reduced the life...