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failed shafts

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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
... those specified. In some instances, fractures may originate in regions of partial or total decarburization or excessive carburization, where mechanical properties are different because of variations in chemical composition. As with any failure, examination of a failed shaft should include...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
..., chains, wire rope, slings, beams, bales, and trunnions; and built-in members such as shafts, gears, and drums. chains cranes failed shafts hooks lifting equipment wire rope LIFTING EQUIPMENT is used for raising, lowering, and transporting materials, parts, and equipment, generally within...
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
... the surface of a fatigue fracture in a 4130 steel shaft that failed in service; this surface exhibits beach marks produced by oxidation of the fracture when the shaft was idle. Beach marks may also be produced by load variations during service, spectrum-load fatigue testing, or changes in stress intensity...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001809
EISBN: 978-1-62708-180-1
... position. (b) Note the damaged areas (arrows A and B) on diametrically opposite sides of the bearing halves where they contacted the shaft after the cap shifted. Long bearings are more likely to be misaligned than short bearings. Sharp edge bearings are likely to fail on the edge, particularly when...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005871
EISBN: 978-1-62708-167-2
... of the part in question. This particular output shaft failed in service due to torsional overload. The fracture, at the top of the figure, occurred at an undercut between the bearing diameter and the spline, which is missing. The induction-hardened pattern is clearly visible at the surface. The hardness...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005864
EISBN: 978-1-62708-167-2
.... This is for improved machinability. The manganese sulfide inclusions found in these steels seem to have little effect on shaft performance in torsion and in bending. However, they will usually guarantee that the shaft will fail in the longitudinal direction when being tested in torsion. The fracture will typically...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
.... Industrial fan shafts are typically forged from medium-carbon steels. Primary fatigue stresses are generated from gravity bending and are fully reversed during each revolution at rates of 900 to 1800 revolutions per minute or 15 to 30 Hz. The maximum alternating stress in the fan shaft is typically ±52 MPa...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... by the field representative or bearing user regarding overheating, excessive noise, frequency of replacement, vibration, looseness, and resistance to shaft rotation. Before a failed bearing is removed from its housing, the orientation of the outer race with respect to the housing and that of the inner race...
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
... Abstract Gears can fail in many different ways, and except for an increase in noise level and vibration, there is often no indication of difficulty until total failure occurs. This article reviews the major types of gears and the basic principles of gear-tooth contact. It discusses the loading...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002395
EISBN: 978-1-62708-193-1
... del Transporte , Mexico . The secondary transmission shaft of a heavy weight truck failed after 10,000 Km (or 5% guaranteed life). The piece was AISI 8620 steel with five keyways and a gear ( Fig. 29 ) and a carburized case (0.5 mm deep hard surface of 60–62 HRC) and an interior hardness of 20–25 HRC...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000605
EISBN: 978-1-62708-181-8
... of fracture, liquid droplets of manganese oxysulfide on the dendrite surfaces. These patterns were the only evidence of segregation that was discovered within the fracture. Fig. 152 Fracture surface of a carbon steel drive shaft of a 180-Mg (200-gross-ton) marine tug. The shaft failed by corrosion...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004219
EISBN: 978-1-62708-184-9
...-Liner Wear: Comparison of Some Laboratory and Field Results , Wear , Vol 250 , 2001 , p 81 – 87 10.1016/S0043-1648(01)00613-5 30. Berndt F. and van Bennekom A. , Pump Shaft Failures: A Compendium of Case Studies , Eng. Fail. Anal. , Vol 8 , 2001 , p 135 – 144 10.1016...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002468
EISBN: 978-1-62708-194-8
...Values of the stress concentration factor <italic>K</italic><sub>t</sub> Table 1 Values of the stress concentration factor K t Component shape Value of critical parameter, K t Round shaft with transverse hole Bending d / D = 0.025 2.65 = 0.05 2.50 = 0.10...
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
... of the member, as with rivets, screws, and bolts. When the ultimate shear stress is relatively low, a pure shear failure may result, but in general, a member subjected to a shear load fails under the action of the resulting combined stresses. In addition to fatigue and overload, other common causes of fastener...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003500
EISBN: 978-1-62708-180-1
... Foreign material left in Wrong material of construction Preventive maintenance Postponed Schedule too long Distress damages Vibration Short/open circuit Failed components Sleeve bearing Seal Coupling Shaft Pinion/ball/turning gear Casing Rotor Impeller Shroud Piston Diaphragm Wheel Blades; foil...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006753
EISBN: 978-1-62708-295-2
... selection was revealed through the analysis of a failed tapered-ring sprocket locking device. The device is used to attach a chain sprocket to a shaft without the use of a locking key, enabling the shaft to either drive or be driven anywhere on the shaft ( Fig. 8 ). The configuration consists of an assembly...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002375
EISBN: 978-1-62708-193-1
... Durability , Archiwum Budowy Maszyn , Vol 38 ( No. 1 ), 1991 , p 5 – 13 Spur gear teeth are cut straight across the face of the gear blank, and the mating teeth theoretically meet at a line of contact ( Fig. 1a ) parallel to the shaft...
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
..., clutches, spindles, and seals; in press fits on shafts; and in universal joints, base plates, shackles, and orthopedic implants. Generally, fretting occurs at contacting surfaces that are intended to be fixed in relation to each other but that actually undergo minute alternating relative motion...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003060
EISBN: 978-1-62708-200-6
... R.L. and Caverly J.C. , “Method of Attaching a Metal Shaft to a Ceramic Shaft and Product Produced Thereby,” U.S. Patent 4,499,646 , 1985 18. Rocchio R. , Konstruktion und Eprobung Keramischer Bauteile für Pkw-Motoren , Entwicklungslinien in Kraftfahrzeugtechnik und...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003321
EISBN: 978-1-62708-176-4
...,” J. Test. Eval. , Vol 20 , 1992 , p 285 – 295 10.1520/JTE11724J 10. Wulpi D. , Understanding How Components Fail , 2nd ed. , ASM International , 1999 , p 51 – 53 11. Pilkey W.D. , Peterson's Stress Concentration Factors , 2nd ed. , John Wiley &amp; Sons , 1997...