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fracture toughness

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001605
EISBN: 978-1-62708-217-4
... at the tips of the cracks were evaluated using electron micrograph stereo image pairs to characterize local fracture toughness. To complete the failure analysis, nondestructive evaluation, metallographic examination, and chemical investigations were carried out. No secondary cracks could be found. Most...
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Published: 01 December 1992
Fig. 2 Fracture morphology of fracture toughness specimen (fusion line). More
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Published: 01 June 2019
Fig. 6 Brittle cleavage surface of fracture toughness specimen. 500 × More
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Published: 01 June 2019
Fig. 6 Influence of carbon content on dynamic fracture toughness at different temperature More
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Published: 01 June 2019
Fig. 5 Dynamic fracture toughness date plotted versus temperature for banded and non-banded cores. More
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Published: 01 December 1993
Fig. 8 Fracture toughness versus yield strength More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001531
EISBN: 978-1-62708-231-0
..., and ductility are mainly determined by the carbon content of wheel steels. The fatigue crack growth resistance is insensitive to composition and microstructure, while the fatigue crack initiation life increases with the decrease of austenite grain size and pearlite colony size. The dynamic fracture toughness...
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
... Toughness STP 514 , ASTM , 1972 , p 1 19. Landes J.D. and Begley J. , Fracture Toughness, STP 514 , ASTM , 1972 , p 24 20. Hodgkinson J.M. and Williams J.G. , J and G c analysis of the tearing of a highly ductile polymer , J. Mater. Sci. , Vol 16 , Jan...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003513
EISBN: 978-1-62708-180-1
... (i.e., toughness). The second edition of the BSI PD 6493 ( Ref 6 ) presents failure assessments in the form of FADs using CTOD to characterize both crack-driving force and fracture toughness. The British Standards Institution has issued an updated and expanded version of PD 6493 as BS 7910 ( Ref 7...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001135
EISBN: 978-1-62708-219-8
... Toughness ASTM A441 Brittle fracture Fatigue fracture Introduction In 1979, during a Routine Bridge inspection, a 4″ fatigue crack was discovered in the top flange plate of one tie girder of a tied arch bridge crossing the Mississippi River. This bridge was relatively new, having been completed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001128
EISBN: 978-1-62708-214-3
... morphology of fracture toughness specimen (fusion line). Fig. 3 Fracture morphology of creep crack growth composite specimen (fusion line). Abstract Creep crack growth and fracture toughness tests were performed using test material machined from a seam welded ASTM A-155-66 class 1 (2.25Cr...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001111
EISBN: 978-1-62708-214-3
...Results of Compact tension testing Table 1 Results of Compact tension testing Temperature Fracture toughness (average) °C °F MPa m ksi in. 14 58 60.3 54.9 24 75 61.8 56.2 45 113 64.4 58.6 Predicted life in a 760 mm (30 in.) wide flange...
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
... 51.5 Fracture toughness data, Ref. [<xref rid="c9001780-ref23" ref-type="bibr">23</xref>] Table 6 Fracture toughness data, Ref. [ 23 ] Added element content (wt.%) Tempering temperature ( o C) K IC (ksi-√inch) (multiple samples) 0 100 91, 83 200 129, 126 400 140...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001079
EISBN: 978-1-62708-214-3
... mechanical property tests, including tensile, Charpy V-notch impact, and fracture toughness. The material was found to be a typical Cr-Mo-V steel, and it met the property requirements. No evidence of temper embrittlement was found. The analyses showed that the observed flaws were present in the original...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.petrol.c9001142
EISBN: 978-1-62708-228-0
.... In addition, the stress intensity factor KI calculated from the value of the internal pressure was lower than that estimated by the fracture toughness test. All of this suggests that the tanks were not sufficiently annealed and prone to brittle fracture. The analysis thus proves that cracks initiated by deep...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001272
EISBN: 978-1-62708-215-0
... temperature) may increase constraint to a level where brittle crack propagation occurs for a given level of the ratio of fracture toughness to applied nominal stress. However, brittle fracture in a hot-rolled steel of 0.2% C, in a thin section (4.06 mm, or 0. 160 in., in this instance) at a service...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006833
EISBN: 978-1-62708-329-4
..., and/or maintenance are also discussed. In addition, the article provides information on traffic damage and fatigue cracking that result in bridge failures. The need for steels with better fracture toughness in bridge design is also discussed. bridge components bridge design bridge failures fatigue cracking...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001136
EISBN: 978-1-62708-229-7
... Abstract A fracture mechanics based failure analysis and life prediction of a large centrifugal fan made from low-carbon, medium-strength steel was undertaken following shortcomings in attempts to explain its fatigue life from start stop cycles alone. Measurements of the fracture toughness...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001762
EISBN: 978-1-62708-241-9
... 40,000 54 3.9 Little Yes 3 Stub 194 Steel 42.8 30,700 N/A None Little N/A 4 Stub 192 Steel 43.2 34,100 N/A None Deformed N/A Fracture toughness calculations Table 2 Fracture toughness calculations Axle test Failure stress a, mm 2c, mm a/2c K IC , MPa...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0045903
EISBN: 978-1-62708-223-5
... for the replacement unit to lessen the possibility of such gross inclusion segregation and to improve the fracture toughness of the cylinder. Casing (material) Extruders Nonmetallic inclusions Xray analysis ASTM A235-55 Corrosion fatigue The energy-dispersive x-ray analyzer, in conjunction...