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cyclic crack growth

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540379
EISBN: 978-1-62708-309-6
... for various crack lengths along the potential crack path. Fatigue crack growth rates can be determined from the crack growth rate of the material and the cyclic stress intensity. This procedure is illustrated in Fig. A3.2 . Fig. A3.2 Schematic illustration of crack propagation concept The crack...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540297
EISBN: 978-1-62708-309-6
... for Fractography and Characterization of Fracture Origins in Advanced Ceramics C 1361 Standard Practice for Constant-Amplitude, Axial Tension-Tension Cyclic Fatigue of Advanced Ceramics at Ambient Temperature C 1368 Standard Test Method for Determination of Slow Crack Growth Parameters of Advanced Ceramics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
... Growth Testing, ASM Handbook , Vol 19 , Fatigue and Fracture , ASM International , 1996 , p 168 – 181 10.31399/asm.hb.v19.a0002360 5.45. Ritchie R.O. and Dauskardt R.H. , Cyclic Fatigue of Ceramics: A Fracture Mechanics Approach to Subcritical Crack Growth and Life Prediction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610327
EISBN: 978-1-62708-303-4
... but are very rare. Stress hysteresis is nonexistent due to lack of plasticity. The term cyclic fatigue in ceramics basically refers to fatigue crack propagation da/dn . The general method of fatigue crack growth testing of ceramics can be very similar to that given in ASTM Standard E 647 for measuring...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030126
EISBN: 978-1-62708-282-2
... is a phenomenon in which time-dependent crack growth occurs when the necessary electrochemical, mechanical, and metallurgical conditions exist. Corrosion fatigue is a related process in which the load is cyclic in corrosion fatigue rather than static as in stress corrosion. When hydrogen is generated as a product...
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
... of the crack that produce, within the grains, striations that are parallel to the crack front. The process of fatigue consists of three stages: Stage I: Initial fatigue damage leading to crack nucleation and crack initiation Stage II: Progressive cyclic growth of a crack (crack propagation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870099
EISBN: 978-1-62708-299-0
...., American Society for Metals , 1974 , p 249 9. Marichev V.A. , The Mechanism of Crack Growth in Stress Corrosion Cracking of Aluminum Alloys , Werkst. Korros. , Vol 34 , 1983 , p 300 10.1002/maco.19830340606 10. Spuhler E.H. and Burton C.L. , “ Avoiding Stress-Corrosion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090001
EISBN: 978-1-62708-266-2
... of a surface film. It describes bulk and surface reactions that contribute to SCC, including dissolution, mass transport, absorption, diffusion, and embrittlement, and their role in crack nucleation and growth. It also discusses crack tip chemistry, grain-boundary interactions, and the effect of stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540281
EISBN: 978-1-62708-309-6
... edge-cracked plate, and the compact specimen. Integration of Eq 6.4 is required for those cases where a solution for K (for J e ) or J p is not available. Current fracture mechanics theory treats cyclic crack growth as a linear-elastic phenomenon. The residual strength of a test...
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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090367
EISBN: 978-1-62708-266-2
... cracking test weldments STRESS-CORROSION CRACKING (SCC) is one of the two most subtle corrosion-related causes of premature fracture of structures. Long ago, engineers learned to expect fatigue and corrosion fatigue failures of cyclically loaded components and to plan for the replacement of 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
... and Erdogan ( Ref 38 ) has gained the widest acceptance. It states: (Eq 4) da dN = C 1 ( Δ K ) m 1 where da / dN is the cyclic crack growth rate, Δ K is the stress-intensity factor range, and C 1 and m 1 are material- and loading-dependent constants...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540121
EISBN: 978-1-62708-309-6
.... The plastic strain resulting from cyclic stress initiates the crack; the tensile stress promotes crack growth (propagation).” Moreover, “although compressive stresses will not cause fatigue, compressive loads may result in local tensile stresses. Microscopic plastic strains also can be present at low levels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... fatigue, those being matrix cracking, fiber breaking, crack coupling, delamination initiation, and delamination growth. The chapter describes each mechanism in detail along with related factors. It also discusses the primary differences between composites and metals, the effect of manufacturing defects...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630257
EISBN: 978-1-62708-270-9
... of pressure vessels and other engineering structures in which subcritical flaw growth or time-dependent fractures, such as those stemming from stress-corrosion cracking or fatigue, are important. An adequate fracture mechanics analysis of a structure subjected to cyclic loading, a hostile environment, or both...
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 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060385
EISBN: 978-1-62708-261-7
... of cyclic stress, tensile stress (whether directly applied or residual), and plastic strain. If any one of these three is not present, a fatigue crack will not initiate and propagate. The plastic strain resulting from cyclic stress initiates the crack; the tensile stress promotes crack growth (propagation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270067
EISBN: 978-1-62708-301-0
... concluded that the nickel-base superalloy blade was exposed to high temperatures and stresses, initiating a crack that propagated under cyclic loading. This chapter provides a summary of the investigation and the insights acquired using scanning electron fractography, metallography, and hardness...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610209
EISBN: 978-1-62708-303-4
... they can be optimized. It also discusses the effect of metalworking and heat treatment, the influence of loading and operating conditions, and factors such as corrosion damage that can accelerate crack growth rates. aluminum alloys fatigue fracture fracture toughness steel titanium alloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
..., there are three distinct regimes of crack propagation for polymers under constant amplitude cyclic loading conditions. These regimes include the slow crack growth or threshold regime, the intermediate crack growth or Paris regime, and the rapid crack growth or fast fracture regime ( Fig. 8 ). The velocity...