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Fracture mechanics

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... of fracture mechanics. The fracture mechanics approach is an important part of stress analysis at the tips of sharp cracks or discontinuities. The article reviews fracture mechanics concepts, including linear elastic fracture mechanics, elastic-plastic fracture mechanics, and subcritical fracture mechanics...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001137
EISBN: 978-1-62708-228-0
... Abstract Following a fracture mechanics “fitness-for-purpose” analysis of petroleum industry cold service pressure vessels, using the British Standard PD 6493, it was realized that an analogous approach could be used for the failure analysis of a similar pressure vessel dome which had failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001148
EISBN: 978-1-62708-228-0
... of the pipe that did not fracture during the explosion and from piece 5-1 which contained the fracture origin site. Both pieces were found to have 0.30% carbon and 1.2% Mn with sulfur and phosphorus impurities acceptably low. Fracture mechanics analysis used in conjunction with fractographic results confirmed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046210
EISBN: 978-1-62708-235-8
...: Poor-quality material with low fracture and fatigue resistance Poor machining, which initiates cracks that propagate to failure by a fatigue mechanism in service Excessive stresses associated with abusive use or failure of other components in the system to operate according to design...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... elastic fracture mechanics analysis, with some mention of elastic-plastic fracture mechanics analysis. The article describes the probabilistic aspects of fatigue and fracture. Information on crack-growth simulation of the material is also provided. crack-growth simulation elastic-plastic fracture...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006910
EISBN: 978-1-62708-395-9
... Abstract There are many different types of polymeric materials, ranging from glassy to semicrystalline polymers and even blends. Their mechanical properties range from pure elastic with very high strains to fracture (elastomers) to almost pure linear elastic (Hookian behavior) with low strains...
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Published: 01 January 2002
Fig. 13 Aluminum alloy fracture mechanics test specimen, 6.3 mm (0.25 in.) thick. Fatigue crack at left of arrows is flat and perpendicular to side surfaces (note absence of beach marks in this laboratory fatigue fracture). Overload fracture to right of arrows has 45° shear lips extending More
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Published: 01 January 2002
Fig. 39 Crystallographic fatigue in fracture mechanics specimen of cast Co-Cr-Mo-C medical implant alloy. SEM views located (a) 0.025 mm (0.001 in.) from machined notch tip, and (b) 7.6 mm (0.3 in.) from notch tip. Fatigue striations were not resolvable at any location, and the entire fatigue More
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Published: 01 January 2002
Fig. 10 Crack configurations considered in the fracture mechanics analysis of the turbine casing. Source: Ref 13 More
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Published: 01 January 2002
Fig. 2 Fracture mechanics concepts governing the prediction of failure under conditions of cyclic fatigue More
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Published: 15 January 2021
Fig. 39 Crystallographic fatigue in fracture mechanics specimen of cast Co-Cr-Mo-C medical implant alloy. Scanning electron microscope views located (a) 0.025 mm (0.001 in.) from machined notch tip and (b) 7.6 mm (0.3 in.) from notch tip. Fatigue striations were not resolvable at any location More
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Published: 15 January 2021
Fig. 10 Application of fracture mechanics in failure investigation More
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Published: 15 January 2021
Fig. 14 Crack configurations considered in the fracture mechanics analysis of the turbine casing. Source: Ref 28 More
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Published: 15 January 2021
Fig. 13 Aluminum alloy fracture mechanics test specimen, 6.3 mm (0.25 in.) thick. Fatigue crack at left of arrows is flat and perpendicular to side surfaces (note absence of beach marks in this laboratory fatigue fracture). Overload fracture to right of arrows has 45° shear lips extending More
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Published: 15 May 2022
Fig. 32 Applicability and limitations of force-based fracture mechanics analysis for high loading rates (impact) More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006918
EISBN: 978-1-62708-395-9
... Abstract This article reviews generalized test methodologies for fatigue characterization of polymers and examines fatigue fracture mechanisms in different engineering plastics. It provides detailed micromechanistic images of crack-tip processes for a variety of semicrystalline and amorphous...
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
... related interest in quantitative assessment of load carrying capability as predicted by fracture mechanics (and vice versa). The coupling probably first became obvious when Griffith's model for brittle fracture was applied to the study of cleavage fracture in metallic materials in 1954...
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
... Abstract Engineering component and structure failures manifest through many mechanisms but are most often associated with fracture in one or more forms. This article introduces the subject of fractography and aspects of how it is used in failure analysis. The basic types of fracture processes...
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Published: 01 January 2002
Fig. 8 Observed microscopic fracture mechanisms for different loading conditions and environments. DBTT is the ductile brittle transition temperature, and K ISCC is the stress corrosion threshold. K IHE is the hydrogen embrittlement threshold. Note 8(a): See Fig. 13 and discussions More
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Published: 01 January 2002
Fig. 23 General shifts in fracture mechanism fields for metallic and nonmetallic (ionic or covalent) bonding. (a) fcc metals, cleavage at low temperatures does not occur as in the bcc. (b) Refractory bcc metals. (c) Alkali halides. (d) Refractory oxides. Source: Ref 39 More