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flanged beams

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Published: 30 August 2021
Fig. 7 Connections such as (a) plate-to-plate and (b) wide flange beam-to-column that involve bolts and welds add an additional level of complexity to failure analysis. More
Image
Published: 01 January 2002
Fig. 5 Polished-and-etched core showing a fatigue crack in the beam flange. 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
... to the tractor main-frame I-beams fractured transversely, with the crack in each instance initiating at a weld that joined the edge of the lower flange to the support-bracket casting. The cracks propagated through the flange on each side until the effective cross-sectional area had been reduced sufficiently...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001821
EISBN: 978-1-62708-180-1
..., it was discovered that a crack had developed in the eastbound roadway in Span 11. The crack started at the end of the cover-plated beam; it propagated through the flange and up to 400 mm (16 in.) into the web of one of the main girders ( Fig. 1 ). Additional cracks, such as that shown in Fig. 3 , were detected...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001112
EISBN: 978-1-62708-214-3
... traveled in a curved path toward a flange, turned towards the center of the web, and then traveled almost in a straight line along the length of the beam. Near the other end of the beam, the crack path took a curvilinear course ( Fig. 1 and 2 ). After the rust was removed, several pits were visible...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001679
EISBN: 978-1-62708-229-7
... Abstract Several mercury diffusion pump stages in the Tritium Purification process at the Savannah River Site (SRS) have been removed from service for scheduled preventive maintenance. These stages have been examined to determine if failure has occurred. Evidence of fatigue around the flange...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001611
EISBN: 978-1-62708-219-8
... of the I-beam comprising the lower chord of the truss section scheduled to be the next truss erected. The crack ran almost the entire length of the lower flange, approximately 24 in. The failed weld joined the 3.25 in. thick flange of one I-beam to a 2.40 in. thick flange on another I-beam of 2.40...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0089572
EISBN: 978-1-62708-218-1
... as region E in detail A in Fig. 1 shows a band of fatigue beach marks that nearly penetrated the fillet between the upper portion of the left flange and the web of the beam. Final fracture occurred at this stage, because the remaining section of the beam was unable to sustain the applied load...
Image
Published: 01 January 2002
Fig. 29 Cracking in a floor-beam web above the end of the riveted angle end connection. (a) Floor beam/tie girder connection. (b) Crack along the web-flange weld above the end connection More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0059932
EISBN: 978-1-62708-236-5
... the radial hole because of the added length of beam path. The rejection level was set at 20% of full screen and was based on the size of flaws observed when the shafts were cut up. The flange portion was first cut out of the shaft and retested with a smaller-diameter transducer to better define...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c9001249
EISBN: 978-1-62708-236-5
... Abstract The flanged bearing bush carrying the drive shaft of a feed pump suddenly fractured after about two years of service. The chemical composition was normal for high chromium ledeburitic cast steel, which was corrosion and wear resistant as well as refractory. For unknown reasons...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001777
EISBN: 978-1-62708-241-9
... of the loading forces arising from the 3D trussed beam and the front platform that supports the bucket wheel and machinery. The RHS member in Fig. 4a shows the steel flange, typical of bolt failure by tensile forces, including the prying action developed between the two flange plates. In this case...
Image
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
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0092122
EISBN: 978-1-62708-222-8
... beyond the yield strength of the alloy. Recommendations included increasing the thickness of the flange and web of the side-rail extrusion. Buckling Extrusions Plastic deformation 6063-T6 UNS A96063 Buckling Several aluminum alloy extension ladders of the same size and type collapsed...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001288
EISBN: 978-1-62708-215-0
... Stress Analysis Analytical The platen-supporting flange was considered a built-in cantilever beam ( Fig. 4 ). The table weight, residual stresses, and friction forces between the flange and its supporting surface are neglected in the calculation. The reaction force on the bottom of the flange...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001152
EISBN: 978-1-62708-234-1
... waves in a swimming pool, which was made out of a I-profile beam, was strengthened by welding strips to get a box-like profile. This failed after a comparatively short service, beginning from the flanges at a point where the strengthening ended ( Fig. 1 ). The fracture was initiated by fatigue cracking...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003509
EISBN: 978-1-62708-180-1
... welding processes. The article also describes failure origins in other welding processes, such as electroslag welds, electrogas welds, flash welds, upset butt welds, flash welds, electron and laser beam weld, and high-frequency induction welds. arc welding brittle fracture electrogas welds...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... of tubes, I-beams, channels, and angles under bending forces. Tubes may also buckle due to torsional forces, causing waves, or folds, generally perpendicular to the direction of the compressive-stress component. Parts under bending load are also subject to buckling failures on the compressive (concave...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... was exceeded. Long, slender, straight bars, tubes, or columns under axial compressive forces will buckle when the buckling load is exceeded. Buckling failure may also be encountered on the compressive sides of tubes, I-beams, channels, and angles under bending forces. Tubes may also buckle due to torsional...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006814
EISBN: 978-1-62708-329-4
.... However, when rotated 90°, as shown in Fig. 5(b) , the load distributed along the length of the weld is no longer uniform but has a peak stress in the center of the weld length, which may be problematic when the beam has thin flanges. When failed welded connections involve differences in the stiffness...