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high-cycle fatigue

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
..., a large enough variation or fluctuation in the applied stress, and a sufficiently large number of cycles of the applied stress. The discussion covers high-cycle fatigue, low-cycle fatigue, and fatigue crack propagation. The chapter then discusses the stages where fatigue crack nucleation and growth occurs...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
... Abstract This chapter discusses the factors that play a role in fatigue failures and how they affect the service life of metals and structures. It describes the stresses associated with high-cycle and low-cycle fatigue and how they differ from the loading profiles typically used to generate...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630117
EISBN: 978-1-62708-270-9
... continued cyclic loading, and that can then lead to fracture of the part or structure. Once initiated, the fatigue fracture can propagate by high stresses and low cycles or by low stresses and high cycles. The final rupture may have characteristics of brittle and/or ductile fracture modes, depending...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610209
EISBN: 978-1-62708-303-4
... = N I + N P . Fatigue tests on titanium alloys have shown that at high stress or strain amplitudes, the ratio N I / N F can be as small as 0.01. Therefore, the resistance to crack propagation determines fatigue life in the low-cycle fatigue regime. With regard to crack propagation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... are considered high-cycle fatigue with little plastic strain. Low-cycle fatigue tests are identified by the relatively small number of cycles or reversals to failure and the large degree of plastic strain. An important concern in the testing of polymers is that the attributes of the fatigue test are crucial...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540121
EISBN: 978-1-62708-309-6
... fatigue phenomena into “high-cycle fatigue” and “low-cycle fatigue.” Low-cycle fatigue, or high-strain fatigue, is tentatively defined as the fatigue mechanism that controls failures occurring at N < 10 4 cycles and typically is of concern in cases of significant cyclic plasticity. Actually...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430325
EISBN: 978-1-62708-253-2
... or soot blowers, whereas low-frequency high-amplitude stresses are attributed to boiler cycling. Defective tube-to-tube welds or tube-to-manifold welds that are subjected to vibrations on account of inadequate supports are areas where failure due to mechanical fatigue is most common. Thermal fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780249
EISBN: 978-1-62708-281-5
... in high mechanical hysteresis. Because of their low thermal conductivity, a large portion of the mechanical work done is converted into heat, which complicates the analysis of fatigue data, particularly at high loading frequencies. The traditional approach to fatigue lifetime prediction due to Wohler...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... resulting in subsequent fatigue crack growth Selection and development of materials with improved toughness at the service temperature of –160 °C (–250 °F) Comet aircraft failures 1950s Fatigue crack initiation in pressurized skins due to high gross stresses and stress-concentration effects from...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... requirement for structures is typically much higher than the fatigue requirement. Therefore, because the fatigue threshold of composites is a high percentage of their static or damaged residual strength, they are usually not fatigue critical. In metal structures, fatigue is typically a critical design...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
... High-temperature and thermal shock resistance, thermal conductivity (high or low, respectively) High-temperature components, burner nozzles, heat exchanger heating elements, noniron metallurgy insulating parts, thermal barrier coatings Mechanical Long-term, high-temperature resistance, fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630189
EISBN: 978-1-62708-270-9
..., have the longest straight-line, or elastic, portions of the typical stress-strain curves. Fig. 2 Subsurface-origin pitting fatigue. (a) Sketch showing usual origin slightly below the surface where the shear stress is high. The fatigue cracks, which usually originate at stress concentrations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130241
EISBN: 978-1-62708-284-6
... Summarizing the results of the tests presented in the form of Smith plots, the designer, using the characteristics of the steel achieved after thermochemical treatment, will be able to reduce the amount of material used and to choose an optimal technological version, thus ensuring high parameters and longer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700071
EISBN: 978-1-62708-279-2
... by repeated or cyclic stresses that can result in component damage or failure. High-cycle fatigue refers to load cycling below the yield strength of the metal and within the elastic deformation range. In this case, the component survives for a large number of cycles before fatigue failure. Low-cycle fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770171
EISBN: 978-1-62708-337-9
.... Panhans M.A. and Fournelle R.A. , High Cycle Fatigue Resistance of A.I.S.I., E. 9310 Carburised Steel with Two Different Levels of Retained Austenite and Surface Residual Stress , J. Heat Treat. , Vol 2 ( No. 1 ), 1981 , p 56 – 61 10.1007/BF02833074 49. Collins J.D...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.9781627082709
EISBN: 978-1-62708-270-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270138
EISBN: 978-1-62708-301-0
... on their observations and the results of SEM imaging described in the chapter, investigators concluded that the blade failed by low-cycle fatigue, acting on a preexisting crack. fractography high pressure turbine blades low-cycle fatigue SEM fractography visual examination A nimonic alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270150
EISBN: 978-1-62708-301-0
... of striations could best be explained as due to a change from low-cycle fatigue condition in the initial stages to a high-cycle fatigue condition after the crack had grown to a critical length. The failure of the compressor blade was due to fatigue fracture originating from inclusions present at critical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.horfi.9781627082563
EISBN: 978-1-62708-256-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410091
EISBN: 978-1-62708-280-8
... and feedability High yield strength Durability fatigue and strength Crash worthiness and elongation Pressure tightness Elevated temperature strength <150 °C (300 °F) Elevated temperature strength >150 °C (300 °F) Resistance to stress, corrosion cracking Corrosion resistance...