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Fretting fatigue

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001621
EISBN: 978-1-62708-227-3
... Abstract A crankshaft flange from a marine diesel engine illustrated a less-common case of fretting-fatigue cracking. The crankshaft was from a main engine of a sea-going passenger/vehicle ferry. The afterface of the flange was bolted to the flange of a shaft driving the gearbox. Cracks...
Image
Published: 01 June 2019
Fig. 3 Cross section of steel shaft, with fretting-fatigue cracks developing in or near the keyway but ignoring the stress concentration of the corner. Crack “A” initiated from one side of the keyway, as in Fig. 2 ; crack “B” originated from the cylindrical surface. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001620
EISBN: 978-1-62708-229-7
... revealed finely spaced striations on the crack surfaces, supporting a diagnosis of fatigue cracking. Crack initiation in the pulverizer shafts started as a result of fretting fatigue. Greater attention to lubrication was suggested, combined with asking the manufacturer to consider nitriding the splined...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001619
EISBN: 978-1-62708-225-9
... of the splines. SEM examination revealed the splined shaft failed by fretting fatigue. Fretting fatigue Paper machines Shafts (power) 4340 UNS G43400 Fretting wear Fatigue fracture Wood chips can be efficiently turned into fiber for newsprint manufacture by the process of disc refining...
Image
Published: 01 June 2019
Fig. 5 Brittle fracture in spring leg spread from fretting-induced fatigue zone (arrow) at the outboard side surface. Fatigue began at fretting marks due to loosened (or inadequately tightened) lower bolts, which attach the ski-wheel axle. More
Image
Published: 01 January 2002
Fig. 3 Fatigue crack generated by fretting damage at a rivet hole More
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... the result of external vibration, but in many cases, it is the consequence of one of the members of the contact being subjected to a cyclic stress (that is, fatigue), which gives rise to another and usually more damaging aspect of fretting, namely the early initiation of fatigue cracks. This characteristic...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
... is usually the result of external vibration, but in many cases, it is the consequence of one of the members of the contact being subjected to a cyclic stress (that is, fatigue), which gives rise to another and usually more damaging aspect of fretting fatigue or contact fatigue. Fatigue cracks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001138
EISBN: 978-1-62708-231-0
... its mounting trunnion and extended during its motion, it interfered with a frame member. This caused both a bending load and a rotational movement. These effects caused a combination of fretting, galling, and fatigue to the internal thread structure of the clevis. As a result of these deleterious...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... as fatigue crack initiation sites, contributing to eventual fatigue fractures. Additionally, pitting can be associated with fretting (and possibly eventual fatigue), as discussed in the following section. Galvanic Corrosion Galvanic coupling caused by the contact between two dissimilar materials...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
..., and abrasion can be conjoint if wear detritus is harder than the rubbing surfaces. Fretting wear Adhesive wear at run-in; tribo-oxidative wear at steady state Rolling-sliding wear Contact fatigue wear when lambda factor > 3; contact fatigue wear in combination with adhesive wear when lambda factor...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001903
EISBN: 978-1-62708-217-4
... Abstract Fretting and/or fretting corrosion fatigue have been observed on such parts as main rotor counterweight tie rods, fixed-pitch propeller blades, propeller blade clamps, pressure regulator lines, and landing gear support brackets. Microcracks started from severe corrosion pits...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048661
EISBN: 978-1-62708-225-9
... movement that resulted in fatigue failure. Fretting of the pin and drive shaft was observed but did not appear to have contributed to the failure. To prevent reoccurrence, the assembly should be redesigned to include an interference fit between the shaft and the drive wheel. The drive wheel and the shaft...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0047823
EISBN: 978-1-62708-236-5
.... The shaft surface both near and in the keyways indicated fretting which greatly reduced the fatigue limit of the shaft metal and initiated fatigue cracks. Fatigue marks were observed on the fractured key. Repetitive impact loading was responsible for propagation of the cracks. The high cyclic bending...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001902
EISBN: 978-1-62708-217-4
... fine radial ridges emanate. Magnification 15 times. Fig. 4 Example of failure remote from attachment bolt holes of spring leg. Note severe fretting, pitting, and polishing on the outboard side at lower end of leg. Fatigue started at indicated area of fretting marks. Fig. 5 Brittle...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
... loading in the presence of body liquids can cause wear and fretting corrosion at implant junctions, such as screw heads and plate holes, or at artificial articulation surfaces. Extensive research has been devoted to the study of wear on artificial joints and its degradation products. Corrosion fatigue...
Image
Published: 01 June 2019
Fig. 4 Example of failure remote from attachment bolt holes of spring leg. Note severe fretting, pitting, and polishing on the outboard side at lower end of leg. Fatigue started at indicated area of fretting marks. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c0048407
EISBN: 978-1-62708-226-6
... crack in the center of the surface. Another small crack was visible on the edge of the plate hole. A large portion of the plate surface at the fracture edge showed deformation from fatigue damage. Crack initiation does not take place in the plate holes and is not related to the fretting that may occur...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... used in the laboratory portion of the failure investigation are mentioned in the failure examples. The topics covered are creep, localized overheating, thermal-mechanical fatigue, high-cycle fatigue, fretting wear, erosive wear, high-temperature oxidation, hot corrosion, liquid metal embrittlement...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001728
EISBN: 978-1-62708-236-5
... that failure was due to improper installation torqueing of the bolts. Aircraft components Aircraft Bolts Propellers Torque Steel Fretting wear Fatigue fracture Careful examination of flight log data, maintenance reports, accident reports, and statements of witnesses indicated...