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Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
... equipment in three categories: cranes and bridges, attachments used for direct lifting, and built-in members of lifting equipment. It first reviews the mechanisms, origins, and investigation of failures. Then the article describes the materials used for lifting equipment, followed by a section explaining...
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Published: 01 January 2002
Fig. 6 Steel wire rope, used on a cleaning-line crane, that failed from fatigue resulting from vibration caused by shock loading. (a) Section of the wire rope adjacent to the fracture. Approximately 1 1 2 ×. (b) Unetched longitudinal section of a wire from the rope showing fatigue More
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Published: 01 January 2002
Fig. 13 13,600-kg (15-ton) 1020 steel crane hook that failed in fatigue. View of a fracture surface of the hook showing beach marks. Original and improved designs for the nut and the threaded end of the hook are also shown. Dimensions given in inches More
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Published: 01 January 2002
Fig. 18 1055 steel wheel from a stripper crane that failed by fatigue. The wheel foiled after about 1 year of service in the 544,320-kg (600-ton) crane. In the center of the fracture is a fatigue zone showing beach marks that are concentric around the crack origin, which evidently More
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Published: 01 January 2002
Fig. 20 Welded stop-block assembly for a crane runway showing stop-block guide that failed by brittle fracture. Dimensions given in inches More
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Published: 01 January 2002
Fig. 22 Surface burning that initiated fracture in the web of a crane-bridge wheel forged from 1055 steel. Etched with 2% nital. Approximately 35× More
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Published: 01 January 2002
Fig. 23 1055 steel crane-bridge wheel that failed by fatigue. (a) Fracture surface of the crane-bridge wheel. Fatigue originated at forging defects. Dark areas are fatigue beach marks. (b) Micrograph of a nital-etched section through the fatigue origin showing a gross forging defect along More
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Published: 01 August 2018
Fig. 30 1045 steel crane hook showing indications of forging laps of the type revealed by magnetic-particle inspection. Dimensions given in inches More
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Published: 01 August 2018
Fig. 39 Forged crane hook showing stress areas subject to inspection More
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Published: 01 August 2018
Fig. 40 50 kN (6 tonf) crane hook showing magnetic-particle indication of a forging lap, and section through hook showing depth of lap More
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Published: 30 August 2021
Fig. 16 Two different contact patterns resulting from the deformation of a crane structure More
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Published: 30 August 2021
Fig. 33 13,600 kg (15 ton) grade 1020 steel crane hook that failed in fatigue. View of a fracture surface of the hook showing beach marks (right). Original and improved designs for the nut and the threaded end of the hook are also shown (left). Dimensions given in inches More
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Published: 30 August 2021
Fig. 39 Crane structural member failure due to insufficient penetration More
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Published: 30 August 2021
Fig. 41 Welded stop-block assembly for a crane runway showing stop-block guide that failed by brittle fracture. Dimensions given in inches More
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Published: 30 August 2021
Fig. 43 Surface burning that initiated fracture in the web of a crane-bridge wheel forged from grade 1055 steel. 2% nital etch. Original magnification: ~35× More
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Published: 30 August 2021
Fig. 44 Grade 1055 steel crane-bridge wheel that failed by fatigue. (a) Fracture surface of the crane-bridge wheel. Fatigue originated at forging defects. Dark areas are fatigue beach marks. (b) Micrograph of a nital-etched section through the fatigue origin showing a gross forging defect More
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Published: 15 January 2021
Fig. 1 Collapse of a crane More
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Published: 15 June 2020
and middle), helix (top right), stents (bottom left and middle), and square latticed hollow cylinders (bottom right). Scale bar: 2 mm. (c) Optical image of printed origami TiH 2 crane. (d) Optical image of a TiO 2 crane produced by annealing a printed origami TiH 2 crane at 1050 °C (1920 °F) in the air More
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000606
EISBN: 978-1-62708-181-8
... fracture, brittle fracture, and in-service rotary bending fatigue fracture of fractured roof-truss angles, pressure-vessel shells, automotive axle shafts, broken keyed spindles, crane gears, blooming-mill spindles, automotive bolts, and crane wheels of these steels. axle shafts brittle fracture...
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Published: 01 August 2018
Fig. 31 Magnetic-particle indications of a seam (at arrow) in the shank of a forged crane hook More