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fatigue curve

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001465
EISBN: 978-1-62708-231-0
..., characteristic of fatigue failure. The crack was one of several which developed in the sections of curved rail which formed the lower roller path on which the superstructure of a walking drag-line excavator slewed. The cracking, which ran horizontally, developed at the junction of the underside of the rail head...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0047076
EISBN: 978-1-62708-217-4
..., 0.2x/2x/2.3x electron microscope fractographs, hardness testing, and electrical conductivity testing) supported the conclusions that the failure was caused by fatigue cracks originating on the inside curved surface of the flanges. The cracks had initiated in surface defects caused by either corrosion...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001418
EISBN: 978-1-62708-231-0
.... The fracture revealed a complex torsional fatigue failure. Microscopic examination revealed that the pin had been hard chromium plated and that the plating followed the curved edge of the outer extremity of the defect. This crank pin contained an inherent defect in the form of a slag inclusion or crack...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001075
EISBN: 978-1-62708-214-3
... 10.00–14.00 Molybdenum 2.50–3.00 2.00–3.00 Fig. 1 Schematic diagram of an electrostatic precipitator system, showing location of wires. Source: Adapted from Ref 1 . Fig. 8 Fatigue curves for cold-drawn type 304 austenitic stainless steel, showing that the cold-worked condition...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001596
EISBN: 978-1-62708-225-9
... displacement. To simulate the application, the springs were inserted into the same guides used on the compressor. The springs were run at several different displacements with a set height of 26.5 mm to develop fatigue curves. Table 4 summarizes the data for the fatigue tests. The failure mode, shown in Fig...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001819
EISBN: 978-1-62708-180-1
... was rather heavily loaded. Morphological comparison and fatigue initiation curves indicated that a local stress concentration of 500 to 600 MPa (72 to 87 ksi) was present. This load would still be below the elastic limit of the cold-worked stainless steel. No fatigue cracks were visible on the broad section...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001149
EISBN: 978-1-62708-232-7
... times on the order of days indicate quite good agreement with the theoretical failure curve at 1000°F. The resulting low cycle fatigue test data is plotted on Fig. 9 , along with the theoretical mean failure curves which had previously been derived using tensile test data reported by U. S. Steel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
.... Trans. A 14 ( 3 ), 471 – 484 ( 1983 ) 10.1007/BF02644224 13. Kiessling R. Non-Metallic Inclusions in Steel, Part III , Iron and Steel Institute [ London ], 1968 14. Boyer H.E. (ed.) Atlas of Fatigue Curves , American Society for Metals , 1986 15. Thornton...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... Design concept Material characteristics Safe-life, infinite-life Nominal stress or local stress concept S - N curve, S a = f ( N F ) Fatigue diagram, S a = f ( S m ) Safe-life, finite-life Local strain concept Low-cycle fatigue curve, ε a = f ( N i ) Cyclic stress-strain...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001790
EISBN: 978-1-62708-241-9
.... Irwin G.R. , Paris P.C. , and Tada H. : The Stress Analysis of Cracks Handbook , 3rd ed. , The American Society of Mechanical Engineers , New York, NY , 2000 . 6. Boyer H.E. , ed.: Atlas of Fatigue Curves , American Society for Metals , Metals Park, OH , 1986 . 7...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001828
EISBN: 978-1-62708-241-9
... for the stresses in the S–N curve for SCF, as shown in Figure 1 . Fig. 1 S-N fatigue curves—environmental impact Corrosion fatigue or environmentally-enhanced fatigue is defined by Gangloff [ 2 ] as the sequential stages of metal damage that evolve with accumulated load cycling in an aggressive...
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
... is located at the left of each diagram. In (a), subsurface initiation occurs for the shallow case because total stress exceeds local fatigue strength in the shaded (subsurface) area. In (b), subsurface initiation occurs for stress curves 3 and 4, while surface initiation is expected for higher-stress levels...
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
... exceeds local fatigue strength in the shaded (subsurface) area. (b) Subsurface initiation occurs for stress curves 3 and 4, while surface initiation is expected for higher-stress levels 1 and 2. Source: Ref 10 Fig. 4 Subsurface fatigue origins (at arrows) in an induction-hardened 8.25 cm (3.25...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001709
EISBN: 978-1-62708-229-7
... lead to thermal fatigue failure. The failure started at the fillet weld of the curved tubes with the corrugated steel sheet since this fillet weld represents the highest stress concentration zone at IK boxes. However, it can be stated that this fillet weld has no essential role in the present...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003545
EISBN: 978-1-62708-180-1
... Some of the key material properties at high temperature are thermal expansion coefficient, stress rupture, elastic modulus, fatigue life, and oxidation resistance. Total strain at temperature is given by the sum of elastic stress-strain modulus, thermal expansion strain, and creep strain...
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
..., and area reduction have been obtained. Fatigue properties including cyclic curve, strain-life and stress-life curves, and Coffin-Manson parameters have also been acquired. Fractography of the fractures/failed test sample’s surfaces, examination of the microstructure of the electroformed nickel tool...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
... Abstract The principal types of elevated-temperature mechanical failure are creep and stress rupture, stress relaxation, low- and high-cycle fatigue, thermal fatigue, tension overload, and combinations of these, as modified by environment. This article briefly reviews the applied aspects...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... information on fatigue life assessment, elevated-temperature life assessment, and fitness-for-service life assessment. elevated-temperature life assessment fabrication failure analysis fatigue life assessment fitness-for-service life assessment material defects nondestructive inspection stress...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... rate data, and geometry is defined through a dimensionless β factor. For traditional fatigue methods such as the stress-life method, an S - N curve, which plots stress versus number of cycles to failure, is obtained through fatigue testing and is used to define a material-dependent endurance limit...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
... Testing , Edward Arnold , London , 1987 7. Bray D.E. and Stanley R.K. , Nondestructive Evaluation, A Tool , Design, Manufacturing and Service, Revised Edition , CRC Press , Boca Raton, FL , 1997 8. Fatigue and Fracture , Vol 19 , ASM Handbook , ASM International , 1996...