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Gross yielding

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0046222
EISBN: 978-1-62708-217-4
... and fork. The nonuniformity of the shot-peened effect on the shank and fillet portions of the spindle resulted from incomplete peeing. The fracture was of the low-stress high-cycle type, initiated by stresses well below the gross yield strength and propagated by thousands of load cycles. No recommendations...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001303
EISBN: 978-1-62708-215-0
... because of gross overload. Use of an alloy with a much higher yield strength and improvement in design were recommended. Chain drives Cracking Motor vehicles Sand castings UNS A14130 A413.0 LM6M (Other, general, or unspecified) fracture Background A sprocket drive wheel in a tracked...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001758
EISBN: 978-1-62708-241-9
... and/or interdendritic in appearance compared to smoother, transgranular fatigue type fractures. Often, gross plastic yielding is visible on a macroscopic scale. Commonly observed microstructural characteristics include creep voiding along grain boundaries and/or interdendritic regions. Internal voids can also nucleate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001473
EISBN: 978-1-62708-229-7
...Abstract Abstract A combination of adverse factors was present in the disruption of a turbo-alternator gearbox. The major cause was the imposition of a gross overload far in excess of that for which the gearbox was designed. The contributory factors were a rim material (EN9 steel...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c0092135
EISBN: 978-1-62708-222-8
... the barrel walls thicker and more uniform, and/or developing an alternative nontoxic metal shot with a hardness in the range of 30 to 40 HB. Ammunition Guns 1138 UNS G11380 Gross yielding A standard commercial shotgun barrel fabricated from 1138 steel deformed during a test that was made...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0092131
EISBN: 978-1-62708-234-1
..., Materials substitution Cold-drawn high-carbon steel Gross yielding The engine of an automobile lost power and compression and emitted an uneven exhaust sound after several thousand miles of operation. When the engine was dismantled, it was found that the outer spring on one of the exhaust valves...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
... characteristics now differ considerably. The ductile plastic exhibits typical ductile yielding or irreversible plastic deformation prior to fracture. The brittle plastic, on the other hand, exhibits no observable gross plastic deformation, only abrupt failure. POLYMERS are long-chain molecules (or high...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003501
EISBN: 978-1-62708-180-1
... be dimensioned to keep stresses below yield failure levels? Add ribs? Use stronger material? Fatigue If there will be cyclic loads, can the configuration be dimensioned so as to keep the internal stresses below the fatigue limit? Stress concentrations Can the part be dimensioned to keep local stress...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001266
EISBN: 978-1-62708-215-0
... of an underlying coarse grain size. The surface markings on the portion of the stem on the right in Fig. 2 were made by the tool used to remove the stem from the femur after fracture. Fig. 1 Failed femoral head prosthesis. Fig. 2 Concave side of stem, showing gross “orange peel” surface (arrows...
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
... can still occur if the state of stress is plane stress; that is, one normal stress component is 0. If the stress raiser results in sufficient constraint to produce plane strain, then gross yielding and distortion will not be observed. However, localized distortion may accompany crack extension...
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
...; that is, one normal stress component is 0. If the stress raiser results in sufficient constraint to produce plane strain, then gross yielding and distortion will not be observed. However, localized distortion may accompany crack extension as the inherent ductility of the material manifests itself...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0090965
EISBN: 978-1-62708-221-1
... was relatively rough. No gross casting imperfections were visually apparent. The chemical composition satisfied the typical specifications for this cast iron grade. Although samples removed from a cast component may bear little relation to grade/condition determination based on separately poured test bars...
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
.... Adapted from Ref 41 . Reprinted with permission from Elsevier Fig. 8 Schematic illustration of partial slip fretting, gross slip fretting, and reciprocation sliding conditions as a function of the displacement amplitude (e.g., sphere-on-flat contact). Adapted from Ref 43 . Reproduced...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001027
EISBN: 978-1-62708-214-3
...Abstract Abstract The 4340 steel main rotor yoke of a helicopter failed during a hovering exercise. Visual examination of the yoke revealed no evidence of gross external damage. Visual fracture surface examination, macrofractography, scanning electron micrography, and metallography of a section...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001026
EISBN: 978-1-62708-214-3
... for 17-4PH steel heat treated to the hardness measured is about 200 MPa m (180 ksi in. ), so that the approximate gross stress for fracture can be calculated: σ f ≅ 200 0.207 = 966   MPa The estimated yield strength is 1240 MPa (180 ksi). It is therefore...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... brittle gray iron is macroscopically indistinguishable from overload fracture. Source: Ref 7 Fig. 11 Subsurface fatigue origin at gross welding discontinuity. Source: Ref 13 Fig. 27 Discrete bands of fast overload fracture (dull gray) separated by bands of progressive fatigue...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001527
EISBN: 978-1-62708-224-2
... failure examination, the rope, strand, and wire diameters should all be measured. Examination should also address the presence or absence of lubricant, corrosion evidence, and gross mechanical damage. Failed wires can exhibit classic cup-and-cone ductile features, flat fatigue features, and various...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001852
EISBN: 978-1-62708-241-9
... the failure mechanism and gross properties of the mould’s material. Finite element modeling of the mould and corresponding thermal behavior using the obtained material, mechanical and cyclic properties has been investigated extensively. Fatigue life distribution across the mould has been calculated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
... iron. Fatigue in this relatively brittle gray iron is macroscopically indistinguishable from overload fracture. Source: Ref 7 Fig. 11 Subsurface fatigue origin at gross welding discontinuity. Source: Ref 13 Fig. 27 Discrete bands of fast overload fracture (dull gray) separated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
... from changes in material properties from mechanical strain, gross damage, and change in material microstructure or embrittlement. Complex engineering failures also may result from simultaneous multiple alterations. Fracture Modes and Mechanisms When dealing with a fracture (not all failures...