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cyclic fracture

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Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002352
EISBN: 978-1-62708-193-1
... versus load ratio in a vacuum. Source: Ref 62 Abstract This article provides a brief description of the different types of micromechanisms of monotonic and cyclic fracture. General information on the material variables that have the most beneficial effect on resistance to failure is presented...
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
... Abstract Fatigue failure of engineering components and structures results from progressive fracture caused by cyclic or fluctuating loads. Fatigue is an important potential cause of mechanical failure, because most engineering components or structures are or can be subjected to cyclic loads...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003307
EISBN: 978-1-62708-176-4
... on a description of the experimental method that should be followed in conducting tests of CFCG with various hold times. The article describes the testing conditions, definitions, and the necessary calculations of various crack-tip parameters considered during static and cyclic loading in time-dependent fracture...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003319
EISBN: 978-1-62708-176-4
... S. , Fatigue of Mineral Glass under Static and Cyclic Loading , Proc. R. Soc. A. , Vol 192 , 1948 , p 537 – 543 10.1098/rspa.1948.0025 2. Shand E.B. , Experimental Study of Fracture of Glass, Part I: The Fracture Process , J. Ceram. Soc. , Vol 37 , 1954 , p 52 – 60...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002417
EISBN: 978-1-62708-193-1
... whisker composite in 1400 °C air. Source: Ref 21 Fig. 11 Crack growth velocity da / dt plotted as a function of the stress intensity factor ( K I or K mass ) for static and cyclic load fracture in Al 2 O 3 -33 vol% SiC Composite in air at 1400 °C. Source: Ref 21 Fig. 12...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002398
EISBN: 978-1-62708-193-1
... and discontinuities. It describes the various factors that influence fatigue of cast steels. These factors include section size, defect size, stress modes, and waveform types. The article discusses various fracture mechanics in cast steels: cyclic stress-strain behavior and low- and high-cycle fatigue life behavior...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
... Abstract This article describes three design-life methods or philosophies of fatigue, namely, infinite-life, finite-life, and damage tolerant. It outlines the three stages in the process of fatigue fracture: the initial fatigue damage leading to crack initiation, progressive cyclic growth...
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
... Abstract Fatigue failures may occur in components subjected to fluctuating (time-dependent) loading as a result of progressive localized permanent damage described by the stages of crack initiation, cyclic crack propagation, and subsequent final fracture after a given number of load...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002400
EISBN: 978-1-62708-193-1
... Table 1 Fracture toughness results for carburized SAE 4320 bending fatigue specimens Max stress, MPa Cycles to failure Depth, a , μm Width, c , μm a / c M K Ic , MPa m , Eq 1 K Ic , MPa m , Eq 2 K Ic , MPa m , Eq 3 1370 6400 175...
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
... that defines the singularity in stress at the tip of the crack and is a function of the applied loads and the crack size. If the stress intensity factor exceeds a material property known as the fracture toughness, failure is imminent. If the load is cyclic and the maximum stress intensity factor is less than...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003328
EISBN: 978-1-62708-176-4
... under cyclic loading. Full-scale testing facilities and the typical test results required for various applications are discussed. The article also presents information on the transferability of mechanical properties of materials. pressure vessels piping tubing fracture mechanics longitudinal...
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
... fatigue fatigue fracture fractography macroscopic examination microscopic examination polymers FATIGUE failure of engineering components and structures results from progressive fracture caused by cyclic or fluctuating loads. The magnitude of each individual load event is too small to cause...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002396
EISBN: 978-1-62708-193-1
... ( Ref 25 ) Fig. 19 Effect of grain size and alloying on cyclic stress-strain response Fig. 20 Strain-life behavior as influenced by grain size and alloying ( Ref 24 ) Fig. 21 Monotonic strength, ductility, and fracture toughness as a function of hardness for a medium-carbon...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002361
EISBN: 978-1-62708-193-1
... , the environment-induced increase, which is represented by the value ( C − C 0 ), is found to be linearly proportional to the “time-at-load” or period (the inverse of cyclic-load frequency). Fractographic examination of the fracture surfaces also indicated that, at lower frequencies, where the environmental...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003318
EISBN: 978-1-62708-176-4
... with information on fractography, a useful tool in failure analysis. fatigue crack initiation fatigue crack propagation fatigue testing fractography plastics polymers failure analysis FATIGUE FRACTURE OF ENGINEERING PLASTICS due to cyclic loading conditions is of critical concern when designing...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003313
EISBN: 978-1-62708-176-4
... fatigue crack growth rate fracture mechanic crack growth fracture mechanics simulation strain life curve strain-control testing stress-life curve FATIGUE is the progressive, localized, and permanent structural damage that occurs when a material is subjected to cyclic or fluctuating strains...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002364
EISBN: 978-1-62708-193-1
... Percent reduction in area, % RA Zero to 90% True fracture strength, σ f , ksi 0.5 to 5 × 10 2 True fracture ductility, ε f Zero to 2 Strain-hardening exponent, n Zero to 0.5 Table 2 Monotonic and cyclic stress-strain properties of selected steels Alloy Condition...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... a broader engineering failure. Note that some non-fracture-failure scenarios may ultimately lead to fracture. Wear processes, for example, can ultimately lead to fracture by galling and/or fretting fatigue. Other examples include fatigue crack initiation at surface pits from corrosion, cyclic loading...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... lips Mixed-mode fracture (incomplete constraint) Tightly closed crack on surface Possible cyclic loading Possible processing imperfection, e.g., from shot peening, quench cracks Radial marks and chevrons (v-shape) Point toward crack initiation site Show crack propagation...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... ( Ref 9 ). Fig. 15 Wallner lines (arrow) on the surface of a fractured WC-Co specimen. TEM formvar replica. Etched with 5% HCl. (S.B. Luyckx, University of the Witwatersrand) A fracture that is the result of repetitive or cyclic loading is known as a fatigue fracture. A fatigue fracture...