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bending moment

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Published: 01 January 2002
Fig. 22 Distortion in the web gap. M, bending moment; L, gap between surface of flange and weld to web More
Image
Published: 01 January 2002
Fig. 10 Sign convention for shear ( V ) and bending moment ( M ) More
Image
Published: 15 January 2021
Fig. 10 Sign convention for shear ( V ) and bending moment ( M ) More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001513
EISBN: 978-1-62708-232-7
..., the individual corrosion pits acted as stress raisers and initiated coarse grain spalling. Due to a bending moment on the rotating element, this in turn initiated bending fatigue normal to the longitudinal axis, which propagated through to the bore of the inner ring. Stain marks were visible in the bore...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0048846
EISBN: 978-1-62708-234-1
... and in the circumferential direction in response to a bending moment load. It was concluded that the primary cause of failure was the occurrence of bending stresses that exceeded the stress levels predicted by design calculations and that were higher than the maximum allowable primary membrane stress. Bending stresses...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001746
EISBN: 978-1-62708-217-4
... was inadequate procedure, which resulted in bending moments being applied to the bolt threads. Acid pickling Bolts Cadmium plating Landing gear Torque 4340 UNS G43400 Surface treatment related failures Hydrogen damage and embrittlement Fig. 1 shows a failed beam from a landing gear...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001781
EISBN: 978-1-62708-241-9
... moments generated during the downswing aggravated by manufacturing defects and stress concentration combined to create an overload condition. golf club fracture stress concentration aluminum alloy casting voids mechanical testing bending moment A360 (3xx.x series, cast aluminum-silicon alloy...
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
... gear box, the rotating shaft usually endures loadings associated with torsion and bending moments, producing a steady torsion stress and cyclic bending stress. As a result, the shafts are susceptible to fatigue failure during the operation [ 1 ]. In this study, the reverse shaft was used...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c0001784
EISBN: 978-1-62708-218-1
... 130 19 Fig. 1 Original and revised lever designs showing plot of stresses in the original and redesigned part. Dimensions given in millimeters As a simple lever, the stress at section A would be calculated as follows: (Eq 1) Bending moment = M = ( force...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0046160
EISBN: 978-1-62708-224-2
.... The axial movement of the crane wheel allowed the torsional moment to be displaced toward the location of the maximum bending moment, increasing the total effective stress. The edges of the portion of the keyway in the broken axle were battered and misshapen ( Fig. 1c ), apparently from repeated impact...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001416
EISBN: 978-1-62708-235-8
.... Calculation of the longitudinal stress in the cylinder at the junction with the flat end showed: Stress due to pressure (4,480 p.s.i.) = 7,580 p.s.i. Additional stress due to bending moment = 30,100 p.s.i. Total longitudinal stress =37,680 p.s.i. Assuming that the material possessed a yield...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001459
EISBN: 978-1-62708-234-1
... unidirectional bending moment evenly distributed along the length considered. As the section is uniform, the maximum tensile stress in the plane of bending will be constant, as indicated by the thin arrows, the lengths of which are proportional to the stress intensity in any of the diagrams in which...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001058
EISBN: 978-1-62708-214-3
.... In contrast, the threads on portions that were exposed were covered with a dirty deposit, possibly from a pipe-sealing compound that may been used in a preliminary attempt to seal the leak from the outside. A small section of thread was missing, having broken off because of the bending moments caused...
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
... at the weld by creating a steep gradient in section modulus at that point. The natural swaying of the load carried by the trailer imposed high bending-moment stresses on the channels of the supplementary axle assembly, raising the stress concentration at the weld to above the yield strength of the material...
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
... of initiation of the fracture was located in the most highly stressed part of the hook where it had been subjected to both the greatest bending moment and the greatest direct tensile stress, there was also present a discontinuity in the form of a crack or fissure, whilst the material was low in carbon...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001370
EISBN: 978-1-62708-215-0
... moment. The presence of multiple cracks normally implies a relatively high applied load and rotational bending. When a shaft is rotated in only one direction, the crack advances asymmetrically, as evidenced by the fact that the final failure took place some distance from the censer. The final failure...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001792
EISBN: 978-1-62708-241-9
.... This misalignment can cause vibration and ultimately result in a fatigue failure in the shaft [ 1 ]. A gear shaft is usually subject to a high torsional moment and a bending moment as well as cyclic stresses which, when combined, may cause fatigue in the shaft. These factors may be influenced by stress...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001842
EISBN: 978-1-62708-241-9
... subject the roll to cyclic bending stress as it rotated in place are: (a) The weight of the roll, determined to be 10.5 lb/in (1838 N/m). (a) The belt tension, known to be 28 lb/in (4906 N/m). Fig. 12 Roll load diagram and corresponding moment diagram Shown also as part of Fig...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... are functions of their position on the cut surface. The possibility that the stresses σ and τ are functions of position on the surface must also be permitted (as in the stress field around a stress concentrator or a stress state in bending or torsion). In addition, if the surface is cut in a different...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001054
EISBN: 978-1-62708-214-3
... at the center of the span at the location of maximum bending moment. Therefore, the induced bending stresses were normal to the plane of the joint. Loading of the specimen was achieved by tightening a lubricated screw against the specimen with a calibrated wrench to a predetermined torque. The loading...