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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0048665
EISBN: 978-1-62708-217-4
...Abstract Abstract The jackscrew drive pins on a landing-gear bogie failed when the other bogie on the same side of the airplane was kneeled for tire change. The pins, made of 300M steel, were shot peened and chromium plated on the outside surface and were cadmium plated and painted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001231
EISBN: 978-1-62708-232-7
... which extended from the gear side to more than half the rim width. A second incipient failure commenced from the opposite tooth bottom. Both fractures have joined below the tooth of the rim. The failure on the drive side, bottom in Fig. 1 and left in Fig. 2 , should have arisen primarily, while...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
..., as well as how their alignment may be affected by deflections or distortions that can occur as a result of mechanical loads, shock, vibrations, or thermal gradients, should be considered. The method of connecting the driving or driven member to the shaft, such as press fitting, welding, or use...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001633
EISBN: 978-1-62708-221-1
... Wiley & Sons , 2000 , pp. 365 – 67 . 2. Reed-Hill R.E. : Physical Metallurgy Principles , 2nd ed. , D. Van Nostrand Co. , New York , 1973 , pp. 810 – 11 . 3. Thomason P.F. : Ductile Fracture of Metals , Pergamon Press, Oxford , 1990 , pp. 1 – 29 . 4. Thomson...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
...). Detail A: Sections through failure area showing original design, first revised design, and final design. OD, outside diameter Fig. 24 Schematic illustration of stress distribution in two types of rotating shafts with press-fitted elements under a bending load Fig. 25 Peeling-type...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
... loading of prismatic members and rotating bending of shafts, the driving force for fatigue initiation (e.g., stress range) is relatively uniform over extended volumes or regions. For relatively low driving force, fatigue initiates at one or a few locations within these extended regions or volumes where...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001689
EISBN: 978-1-62708-233-4
...Abstract Abstract The drive shaft on a centrifugal pump fractured after five months of operation. The fracture occurred at a packing gland inside a sleeve against which the packing material sealed. The shaft and sleeve were of duplex stainless steel. In contrast to a previous conclusion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001551
EISBN: 978-1-62708-233-4
...Abstract Abstract A multi-million dollar, four-color printing press used to produce a major weekly magazine was breaking pinions (shouldered shafts) on rolls. The cause of fracture was cyclic fatigue. Steel quality and heat treatment met expected standards. The pinion fracture showed multiple...
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
... cracks initially propagating on different planes intersected. The ratchet mark at the middle arrow was damaged by postfracture contact. Fig. 3 Schematic of gradients in fatigue initiation driving force (shown as total stress) and fatigue resistance (fatigue strength) that can result...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... ). The action between the mating teeth has a wedging effect, which results in sliding on tooth flanks. These gears have low load-carrying capacity, but are useful where shafts must rotate at an angle to each other. Worm-Gear Sets Worm-gear sets are usually right-angle drives consisting of a worm gear...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
... of Gears, Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 1986 , p 586 – 601 2. Landels J.G. , Engineering in the Ancient World , University of California Press , Berkeley and Los Angeles , 1978 , ISBN 0-520-03429-5 3. Source Book on Gear Design...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006805
EISBN: 978-1-62708-329-4
... magnification: 100× Fig. 5 Section through the forged head of a threaded fastener. The uniform grain flow minimizes stress raisers and unfavorable shear planes. Source: Ref 7 Fig. 6 Drive-line assembly that failed because of fatigue fracture of two cap screws. The screws were made...
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
..., a hazard is a condition or changing set of circumstances that present an injury potential (e.g., a railroad crossing at grade, a toxic chemical, a sharp knife, the jaws of a power press). Risk is the probability of injury and is affected by proximity, exposure, noise, light, experience, attention arresters...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001812
EISBN: 978-1-62708-180-1
... resistance can be improved by changing to a material with higher strength and endurance limit, as shown in the following example. Example 2: Fatigue Fracture of Modified 1035 Steel Cap Screws The drive-line assembly shown in Fig. 7(a) failed during vehicle testing. The vehicle had traveled 9022 km...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001713
EISBN: 978-1-62708-220-4
... Technologies, Inc. , Lodi New Jersey , EPA 555-R-97-0002, 10/1997. 2. Handbook of Chemistry and Physics , 62nd Edition , CRC Press Inc. , 1981–1982 . Selected Reference Selected Reference • Becker W.T. and McGarry D. , Mechanisms and Appearances of Ductile and Brittle Fracture...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... the wear failure of an antifriction bearing, a nylon driving gear, and a polyoxymethylene gear wheel. antifriction bearing cohesive wear elastomers glassy thermoplastics interfacial wear lubricant mechanical properties nylon nylon driving gear plastics polyoxymethylene gear wheel...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003551
EISBN: 978-1-62708-180-1
... phenomena all come into play). Basic Principles It is generally accepted that corrosion of refractories and ceramics are the result of some specific chemical reactions rather than electrochemical reactions. It is then appropriate to estimate first the driving force or the propensity of a given...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... spaced reference mark techniques were used so that a comparison between the two methods could be made. A strain gage was mounted at a 45° angle on the drive shaft and between the gearcase and the belt used to drive the reciprocating pump. An FM transmitter and a battery were also mounted on the drive...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
... metal along the grain boundaries ( Ref 34 ). The fourth study maintained that the dihedral angle decreased with increasing applied stress ( Ref 35 ). In the last study, it was found that in the presence of molten copper, the surface energy that must be applied to drive a crack along austenite grain...
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
... field at the crack tip in terms of stress intensity ( K ) in linear elastic fracture mechanics. The crack-tip stress-intensity factor, K , uniquely characterizes the elastic stress field near a crack and represents the crack driving force that controls the onset of brittle fracture and the rate...