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load-carrying capacity

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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
... presents the variables of interest for a rotating shaft and the load-carrying capacity and surface roughness of bearings. Grooves and depressions are often provided in bearing surfaces to supply or feed lubricant to the load-carrying regions. The article explains the effect of contaminants in bearings...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... Abstract Hydrogen damage is a term used to designate a number of processes in metals by which the load-carrying capacity of the metal is reduced due to the presence of hydrogen. This article introduces the general forms of hydrogen damage and provides an overview of the different types...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001285
EISBN: 978-1-62708-215-0
... failure; C, crushing damage. ∼6.l×. Discussion Crushing damage was evident in 87% of the individual wire fracture zones. This damage was caused by overtightening of the clip, which seriously reduced the load-carrying capacity of the rope. Failure of the rope occurred in the leg of the loop...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048253
EISBN: 978-1-62708-234-1
... readings on gears be made using a 60-kg (132-lb) load (Rockwell A scale) and that the minimum case-hardness requirement be set at 81 HRA, an additional safeguard to ensure adequate load-carrying capacity. Selected Reference Selected Reference • Ahmed R. , Rolling Contact Fatigue , Failure...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0047521
EISBN: 978-1-62708-218-1
... Abstract A supplementary axle, which was used as an extension to a highway-trailer tractor to increase its load-bearing capacity, failed in service. The rolled steel channel extensions that secured the axle assembly to the tractor main-frame I-beams fractured transversely, with the crack...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001129
EISBN: 978-1-62708-214-3
... welding had been performed. The coarse, untempered martensite resulting from improper weld procedures was unsuitable for structural loading. Additionally, the reduction of the load-carrying cross section that resulted from the original crack contributed to the inferior total load-carrying capacity...
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: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006869
EISBN: 978-1-62708-395-9
.... Reinforcements (fibrous or particulate) generally are used to increase load-carrying capacity, strength, resistance to creep, and wear. Limitations of strength and thermal conductivity can be overcome efficiently by selecting the right reinforcements and fillers in the appropriate amount, combination...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... criteria was adopted to determine the geometry of the shaft required to provide sufficient load-carrying capacity. However, unexpected fatigue fracture can still occur during operation and service [ 3 – 5 ]. To identify the cause of fracture of the shaft, this study investigated the stress conditions...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001426
EISBN: 978-1-62708-224-2
... Abstract Following three similar failures of load chains on manually operated geared pulley-blocks of 1-ton capacity, a portion of one of the chains was obtained for examination. The chain was made of mild steel and the links had been electrically butt-welded at one side. In the case...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001451
EISBN: 978-1-62708-224-2
... , and a series of Brinell hardness measurements were carried out, using a 2 mm. ball with a load of 120 kg. The results are indicated in Figure 7 . It will be noted that there is a sharp increase in the surface hardness at the transition from the sides of the hook to the working surface the values obtained...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... depth. (b) Induction hardening. SHD, surface-hardness depth. Source: Ref 1 , 2 For materials that would not reach those hardness levels after heat treatment, the following correction factors for the static ( C 0 ) and dynamic ( C ) load-carrying capacities may be used ( Fig. 5 ). Fig. 5...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001471
EISBN: 978-1-62708-221-1
... Abstract A crane hook was stamped S.W.L. 3 tons and, while its main dimensions were in approximate accordance with those specified in B.S. 482 for a hook of this capacity, its shape in some respects was not exactly in conformity with that recommended. At the time of fracture, the load being...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001846
EISBN: 978-1-62708-241-9
... and rotation-bending fatigue fracture. Final fracture region is situated at about the center of the fracture and the area is about one-third of the whole fracture area (marked in Fig. 4 ). This observation suggests that the load which the main shaft bore was significantly less than the load carrying capacity...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006806
EISBN: 978-1-62708-329-4
... used method of representing this transition is the plot of the coefficient of friction, f , versus η N / p ( Fig. 5 ). The curve implies that with an increase in η N / p , the transition to inadequate hydrodynamic lubrication occurs. This behavior occurs when the hydrodynamic load-carrying capacity...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... modes of adhesive wear including scoring, scuffing, seizure, and galling, and describes the processes involved in classic laboratory-type and standardized tests for the evaluation of adhesive wear. It includes information on standardized galling tests, twist compression, slider-on-flat-surface, load...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... Abstract A new crane failed during the overload test following erection. A test load of 5 tons at the end of the jib (rated capacity 4 tons) was in the process of being slewed at the time of this failure. Inspection revealed that the collapse had resulted from the opening out of one eye...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001473
EISBN: 978-1-62708-229-7
... authority supply. Installation The set comprised a back-pressure turbine of 3,000 kW capacity, running at 10,000 r.p.m. and coupled through the gearbox to an alternator running at 1,500 r.p.m. The turbine exhausted into the works' steam main and the alternator normally carried the whole...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001078
EISBN: 978-1-62708-214-3
... machine. The gear motion is transmitted from a speed-reducing device with controlled, adjustable timing to produce proper fit of the valve closure. Pertinent Specifications The material that is specifically recommended for low-speed gear and high-load carry-in capacity corresponds to ASTM standard...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001424
EISBN: 978-1-62708-233-4
... and experiment with fabricated structures. Another feature favourable to the casting is the higher intrinsic damping, capacity of the material. Fabricated structures that are subjected to dynamic loading conditions in service are particularly liable to develop fatigue cracks where stresses are high...