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yield point

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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
... bottom was machined only roughly. Also, the yield point was a little bit too low. Forgings Gears Pitting (wear) Rolling mills Fe-0.4C-0.8Si-1.1Mn Rolling-contact wear Fatigue fracture The rim of a gear wheel of 420 mm width and 3100 mm in diameter broke after four years of operation time...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001232
EISBN: 978-1-62708-233-4
..., leaf springs, engine rods, wing struts, bearings, gears, and more – can occur, seemingly without cause, due to vibrational fracture. Vibrational fractures begin as cracks that form under cyclic loading at nominal stresses which may be considerably lower than the yield point of the material...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001407
EISBN: 978-1-62708-220-4
... of the solution of caustic soda and possibly the temperature also were in the range known to produce stress-corrosion cracking of mild steels in the presence of stresses of sufficient magnitude. In this instance the location of the cracking suggested that residual stresses from welding, which approach yield point...
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
... a value in excess of the yield point within the delay time of the material so when the fracture was initiated, it was preceded by several microcracks giving rise to the propagation of a brittle fracture. Alternators Loads (forces) Notch sensitivity Stress concentration Turbines EN9 Brittle...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001175
EISBN: 978-1-62708-231-0
.... The mean value of the yield point was 24 (24) kg/sq mm, the tensile strength 39 (38) kg/sq mm, the elongation at fracture, d10, 26 (24)%, the necking at fracture 71 (66)% and notch impact value 11.5 (9.4) kgm/sq cm (the values in brackets are for the transverse direction). The specimen from inside surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001017
EISBN: 978-1-62708-219-8
... approximately twice the specified design pressure and two-thirds the approximate yield point of the parent metal. No failures or leakage were observed during proof testing. Metallurgical examination corroborated visual checks, indicating a distinct lack of root penetration in the split areas. Splitting occurred...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001204
EISBN: 978-1-62708-219-8
... outside of the weld seam closely under the head. Neither one had been particularly deformed before fracture. The composition of the head pieces corresponded approximately to manganese steel (Material No. 1 0845), a weldable construction steel with increased yield point and strength, while the shafts were...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001839
EISBN: 978-1-62708-241-9
... steel with elongations barely approaching 8%, compared to 50% at the time of delivery weeks earlier. Based on the timing interval and the fact that failure occurred at operating stresses well below the yield point of the material, the failure is being attributed to hydrogen-induced damage. Potential...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... ) n where A and n are constants, and σ 0 is related to the yield point. Equation 4 has essentially two material constants that must be determined experimentally for each polymer; generally, n > 1. This is only an approximation, because n usually increases with stress...
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
... to its concentration and tears the metal apart. In soft steels of large strain capacity as are discussed here, separations and blisters are formed far below the yield point of the steel and an additional tensile strain may lead to fractures as well 2 , 3 . High strength steels with correspondingly low...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001193
EISBN: 978-1-62708-229-7
... under investigation Mean of 3 blades Specification for X 20 Cr 13 Breaking strength (kp/mm 2 ) 76,8 65-30 Yield point (kp/mm 2 ) 60,8 min. 45 Strain δ5 18 min. 16 Necking (%) 64 - Notch toughness (kpm/cm 2 ) 7.6 min. 4 Hardness (kp/mm 2 ) 227 180–250...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001668
EISBN: 978-1-62708-232-7
... the specified proof load. However, this value was still below the actual yield point of the material even with a biaxial tension/torsion load. Bolt Strengths and Specifications Table 2 Bolt Strengths and Specifications Property Measured Values Specified Mean Std Dev Value (a) Yield...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001454
EISBN: 978-1-62708-220-4
... 2 where σ r max. = stress, lbs./sq. in. q = pressure, lbs./sq. in. a = radius, ins. h = thickness, ins. Assuming that the material between a cavity and the surface has been stressed to the yield point, we have, for a cavity 1″ in diameter, 1 16...
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
.... Regardless of material or processing specifications, if springs are stressed close to the yield point of the material, close control of material and processing plus stringent inspection are needed to ensure satisfactory performance. Service conditions are sometimes changed, invalidating certain...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001210
EISBN: 978-1-62708-227-3
...: Picral. View of part not subject to welding heat. 100 × The fine grained raw material had an elongation of 21.0 % (δ 10 ) at a yield point of 42.7 kp/mm 2 and 66.7 kp/mm 2 tensile strength. It had 63 % reduction of area and 16.1 and 15.2 kpm/cm 2 notch toughness at 18 and 0 °C, respectively...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001221
EISBN: 978-1-62708-219-8
... the stress lies well below the yield point. The error here lay more in the planning than in the design. Selected References Selected References • Becker W.T. and McGarry D. , Mechanisms and Appearances of Ductile and Brittle Fracture in Metals , Failure Analysis and Prevention , Vol...
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
... the stress at any point in a structure exceeds the yield strength of the material. Except for members that are loaded in pure tension, the fact that yielding occurs at some point in a structure has little influence on the ability of the structure to support the load. However, yielding has long been...
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
... of two methods: classical design or limit analysis. Classical Design The conservative, classical method of design (assuming monotonic or static loading) assumes that failure occurs whenever the stress at any point in a structure exceeds the yield strength of the material. Except for members...
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
... strength of 20 t.p.s.i., a stress concentration factor of only: 44.800 37.680 = 1.2 would result in a stress of yield point magnitude being applied at the location where the fatigue crack originated in service. It would be expected that the actual stress concentration factor would exceed...
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
...., the properties of the material after this treatment being as follows: The values of the yield point and ultimate stress were a little lower than those found when the material was tested in the “as received” condition. The second test piece was strained to a permanent extension of approximately 4...