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tangential stress

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001847
EISBN: 978-1-62708-241-9
... sleeve fatigue fracture insufficient nitriding tangential stress chromium steel axial cracks beach marks microstructural analysis nitriding depth 38CrMoAl (chromium-molybdenum-aluminum alloy steel) Background Investigation Methods Observation Results Analysis on Failure Causes...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001308
EISBN: 978-1-62708-215-0
... the weight of the carriage, test section floor, and other elements, as well as from loads transferred from the model during testing. These stresses are typically small. However, large, residual, tangential stresses are believed to exist in this particular rail from fit-up distortion, flame-hardening...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001235
EISBN: 978-1-62708-228-0
... times the operating pressure, without fracture initiation or observable elongation. Subsequently the water pressure was increased in steps of 5 at. Only at 155 at. corresponding to a tangential tensile stress of 34 kp/mm 2 , did the inner pressure drop significantly to 150 at. This value corresponds...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003565
EISBN: 978-1-62708-180-1
... to the tangential stress and accelerates delamination of the protective surface film. The influence of shear decreases as the angle (from 45 to 90°) of contact increases. A model illustrating the dependency of impact wear to angle of contact is shown in Fig. 15 ( Ref 31 ). The model shows the combined effect...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001079
EISBN: 978-1-62708-214-3
... was required to remove unconsolidated and high-impurity segregated material from the center. This bore also facilitated ultrasonic inspection of the forging volume from the bore side for defects buried near it. Such rotors experience high centrifugal tangential stresses at the bore due to High-speed rotation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006793
EISBN: 978-1-62708-295-2
... factor is related to the tangential stress and accelerates delamination of the protective surface film. The influence of shear decreases as the angle (from 45 to 90°) of contact increases. A model illustrating the dependency of impact wear to angle of contact is shown in Fig. 17 ( Ref 40 ). The model...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
... are the tangential stresses due to the shearing force F, which includes the action of the centrifugal force, gas flow, and the radial component of the contact force between buckets. Additionally, the thermal stresses induced by heat in the component are given by: (Eq 2) Δ σ = α ⋅ E ⋅ Δ T where α...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001148
EISBN: 978-1-62708-228-0
... cracking in the longitudinal weld, confirming the earlier observation from the tension test that the weld was of excellent quality and was not a factor in the pipeline failure. For thin walled cylinders, the principal normal stress is the tangential stress, or hoop stress, which may be calculated using...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001305
EISBN: 978-1-62708-215-0
.... On subsequent cycles of high tensile stress, the fracture extended over large areas of the rim, culminating in a final event that compromised the remainder of the rim, web, and hub. The stresses in the rim were amplified by the existing crack. Repeated tangential tensile stress typically stems from...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
.... Axial stress, 0 to 380 MPa (0 to 55 ksi); contact stress, 40 MPa (6 ksi); fretting cycles, 10 5 . Sample was nital etched and viewed with scanning electron microscopy (SEM). Fig. 22 Plot of fretting wear versus fiber orientation angle in a composite Fig. 23 Fretting mark generated...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006829
EISBN: 978-1-62708-295-2
.... Fig. 27 (a) Investigation of crack length extension under a partial slip condition as a function of the tangential force amplitude. Compressive residual stresses limit the crack propagation. (b) Investigation of wear volume extension under a gross slip condition as a function of the friction energy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0060104
EISBN: 978-1-62708-220-4
... in a tangential direction at or about mid-wall, suggesting the possibility of a change in the residual stress-field from tube drawing. Figure 1(c) shows stress-corrosion cracking originating from pits on the outer surface of the tube. The results of the examination indicated that the subject tube failures...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001421
EISBN: 978-1-62708-235-8
.... It was concluded that cracking was due to corrosion-fatigue, which arose from the combined effect of a fluctuating tensile stress in the presence of a mildly corrosive environment. Corrosion environments Magnetic particle testing Optical microscopy Steam pipes Tensile stress Weld metal Welded steel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001807
EISBN: 978-1-62708-241-9
... induced by tangential force acting on the contact patch under roll/slide contacts. Subsurface distributions of shear stresses used as critical stresses for rolling contact fatigue damage are all influenced by the variation of friction coefficient. However, the contribution to variation of maximum...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001231
EISBN: 978-1-62708-232-7
... the other one is situated at a place normally not tensile stressed and can thus only have generated secondarily due to changed load conditions after the formation of the first incipient crack. The teeth showed many pits on the gear side where the fractures are located, too. However, the pittings were found...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001724
EISBN: 978-1-62708-234-1
... compression, in both longitudinal and tangential directions. While much of this bi-axially stressed metal is removed in the final machining, the designer should realize that apparently similar end bells may have residual stresses at the surface of either compression or tension “of a magnitude likely...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001470
EISBN: 978-1-62708-220-4
... of the progress of fatigue cracks. Failure of the one impeller and the cracking of the others were attributed to “low-cycle high-strain fatigue” due to fluctuating circumferential (hoop) stresses. Centrifgual pumps Impellers Stresses 2.5Ni-Cr-Mo Fatigue fracture One impeller of a two-stage...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001474
EISBN: 978-1-62708-224-2
... of the hook, as depicted in Figure 1 , this being a plane where the tensile stress due to bending is a maximum. The detached portion of the hook was projected across the shop, fortunately without injury to any person. Fig. 1 Showing fracture and position of fissures. (× 1 4...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001440
EISBN: 978-1-62708-235-8
... the hand wheel had not played any part. Tensile stress was present at the time of the failure sufficiently high to enable solder penetration to take place. The use of soft solder as a medium for attaching name-plates directly on to stressed steel parts is not recommended. It would be preferable to use...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001368
EISBN: 978-1-62708-215-0
... that the shaft failed by torsional fatigue starting at subsurface crack initiation sites. The forging contained regions of crack like flaws associated with particles rich in chromium, manganese, and iron. Fracture features indicated that the fatigue cracks propagated under a relatively low stress. Forgings...