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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046233
EISBN: 978-1-62708-235-8
... Abstract A drawbar connecting two tank-type trailers of a highway gasoline rig broke while the rig was on an exit ramp of an interstate highway. The drawbar was a weldment of steel plates, tubes, and castings. Light fractography showed no discernable causes for the failure, but a TEM...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001302
EISBN: 978-1-62708-215-0
... Abstract To forged AISI 4140 steel trailer kingpins fractured after 4 to 6 months of service. Fractographic and metallographic examination revealed that cracks were present in the spool-flange shoulder region of the defective kingpins prior to installation on the trailers. The cracks grew...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001034
EISBN: 978-1-62708-214-3
... Abstract The interior surface of a type 316L stainless steel trailer barrel used to haul various chemicals showed evidence of severe pitting after less than 1 year of service. Two sections were cut from the barrel and microscopically examined. Metallographic sections were also prepared...
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Published: 01 June 2019
Fig. 7 Nondestructive evaluation control trailer and generator More
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Published: 01 June 2019
Fig. 1 Steel supplementary axle assembly for a highway trailer that broke in service because of restricting welds. (a) Forward left side of the assembly showing fracture surface of the channel extension. Also visible are the cross l-beam, supporting plate, and support-bracket casting. (b More
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Published: 01 June 2019
Fig. 1 ASTM A186 steel double-flange trailer wheel, for a coke-oven pusher car that failed in fatigue. Cracking initiated at heavily indented and improperly placed stamp marks. (a) Car wheel showing position of stamp marks and fractures in the rim and web. Dimensions given in inches. (b) Stamp More
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Published: 01 June 2019
Fig. 1 Highway tractor-trailer steel drawbar that fractured by fatigue at the cast connection at right because of a weld defect. (a) Drawbar showing components, and fracture in the right cast connection at arrow A; connection at left failed by brittle fracture. (b) Fracture surface of right More
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Published: 01 January 2002
Fig. 24 Sketch showing cutting sequence for a failed trailer hitch. Parts 4282-A-2-2 and 4282-A-3-3-2 were mounted for metallographic examination. More
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Published: 01 December 1993
Fig. 1 Schematic of a trailer kingpin, showing where fracture occurred. More
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.c9001038
EISBN: 978-1-62708-214-3
... Abstract The rear outside wheel of an over-the-road 18-wheel tractor-trailer failed at its bolt holes, permitting the tire and wheel to separate from the hub. Failure analysis was conducted using photographic examination of actual fracture surfaces and SEM examination of fracture replicas...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046247
EISBN: 978-1-62708-235-8
... Abstract A double-flange trailer wheel, in service on a coke-oven pusher car for about five years, broke. Specifications called for rolled steel track wheels conforming to ASTM A 186 (since reclassified as A 504). Chemical analysis showed the metal in the wheel to be medium-carbon steel within...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0048586
EISBN: 978-1-62708-218-1
... Abstract Each of the ten studs on one wheel of a semitrailer used to haul coal broke in half while the trailer was in operation. Both halves of each of three studs were sent to the laboratory to determine the cause of failure. Visual examination of the fracture surfaces of the studs disclosed...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001307
EISBN: 978-1-62708-215-0
... Abstract The right front spring hanger on a dual rear axle of the tractor of a tractor-trailer combination failed, causing the vehicle to roll-over. The hanger was made from malleable cast iron that had been heat treated to produce a decarburized surface layer and a pearlitic transition layer...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001705
EISBN: 978-1-62708-234-1
... material, [ 1 ]. Second Test In January 1987 the tube trailers that supply freon gas to the system were hydrotested for recertification. The trailers were not properly dried after testing, leaving an unknown amount of water in the system, [ 2 ]. Second Failure In January 1988 one...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003502
EISBN: 978-1-62708-180-1
... involve the interaction of various materials in an assembly or with the environment. An articulated tractor and low-loading trailer was being driven through some hilly country in Missouri after delivery of a bulldozer to a construction site. The driver noticed that his rear trailer brakes had started...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006815
EISBN: 978-1-62708-329-4
... design. If the design team abandons or disregards the detail design phase, the final product suffers. Understanding the detail design is critical to investigating the root cause of an engineering failure. As an example, an articulated tractor and low-loading trailer were being driven through some...
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
... on the crane. Corrosion EDS SEM 65-45-12 Fatigue fracture Introduction A large mobile harbor crane commissioned in the early 1990s operated for more than ten years. Operations included lifting containers off ships and tractor-trailer transportation vehicles. Generally, the crane operates...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001639
EISBN: 978-1-62708-229-7
... in the annulus and operated from the NDE control trailer ( Fig. 7 ), which was up to 61 mm (200 ft) from the riser. Access to the annulus was through inspection ports or risers ( Fig. 8 ) inside contamination control huts. These risers are approximately 1 m (4 ft) long and are either 127 mm (5 in.) carbon steel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001766
EISBN: 978-1-62708-241-9
... of the mooring anchor ultimately resulted in a single vehicle incident with non-fatal injuries to the driver of a tractor semi-trailer. On-site investigations were conducted by numerous individuals representing the construction firm, the power company, and to a limited extent, government investigators, which...