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Dynamic fracture toughness

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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
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 Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001135
EISBN: 978-1-62708-219-8
... for the entire fracture process. This load versus time curve can give information regarding maximum load, yielding and fracture loads, and the times to crack initiation and failure. Using this information, the dynamic fracture toughness can be calculated per ASTM E399. All of the data from the impact tests were...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... configuration and geometry independence of fracture toughness values for a given material but also to gain information on the dynamic performance of different specimen types in the higher-loading-rate regime. Fig. 26 Schematic of compact-tension specimen. W , width; a , crack length; B , thickness...
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
... crack arrest employing a static fracture analysis. High Strain Rate The most commonly accepted method of determining the impact fracture toughness of polymeric materials that exhibit a brittle behavior or small scale yielding and negligible influence of dynamic effects is provided by ISO 17281...
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Published: 01 January 2002
Fig. 16 Comparison of static ( K Ic ), dynamic ( K Id ), and dynamic-instrumented ( K idi ) impact fracture toughness of precracked specimens of ASTM A 533 grade B steel, as a function of test temperature. The stress-intensity rate was about 1.098 × 10 4 MPa m · s −1 (10 4 ksi More
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Published: 15 January 2021
Fig. 12 Comparison of static ( K Ic ), dynamic ( K Id ), and dynamic-instrumented ( K idi ) impact fracture toughness of precracked specimens of ASTM A533 grade B steel as a function of test temperature. The stress-intensity rate was approximately 1.098 × 10 4 MPa m · s −1 (10 4 More
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001763
EISBN: 978-1-62708-241-9
... fatigue fracture transient torsional overloading medium carbon steel spline teeth deformation stress analysis fracture toughness SAE/AISI 1045 (medium-carbon alloy steel) UNS G10450 Introduction All-terrain vehicles (ATVs) can be considered fourwheeled motorcycles for off-road operation...
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Published: 15 May 2022
Fig. 36 Loading-rate dependence of fracture toughness. FBA, force-based analysis; DKC, dynamic key curve; POM, polyoxymethylene More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0049797
EISBN: 978-1-62708-235-8
... Abstract An AISI 4340 threaded steel connecting rod that was part of a connecting linkage used between a parachute and an instrumented drop test assembly fractured under high dynamic loading when the assembly was dropped from an airplane. A large flaw that originated from the root of a machined...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003543
EISBN: 978-1-62708-180-1
..., ductility, and toughness of metallic materials. These factors must also be considered in the evaluation and prevention of overload failures. Therefore, throughout this article, the term overload failure is intended to imply fracture due to stresses exceeding the capacity of the material, whether...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001907
EISBN: 978-1-62708-217-4
... desirable directional properties such as tensile strength and ductility, and dynamic properties such as impact toughness, fracture toughness, and fatigue strength. With respect to structural integrity, forged parts are generally free from voids and porosity. All of these properties for the bolts under...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006778
EISBN: 978-1-62708-295-2
... characteristics can act singly or combine synergistically to reduce the strength, ductility, and toughness of metallic materials. These factors must also be considered in the evaluation and prevention of overload failures. Therefore, throughout this article, the term overload failure implies fracture due...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001786
EISBN: 978-1-62708-241-9
... 8. Talukdar P. , Sen S.K. , Ghosh A.K. , Effect of Fatigue Damage on the Dynamic Fracture Toughness of En-8-Grade Steel . Metall. Mater. Trans. A 32 , 2547 – 2552 ( 2001 ) 10.1007/s11661-001-0044-7 9. Carvill J. , Mechanical Engineers Data Book ( Butterworth...
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
... fracture toughness ( Figs. 4 , 5 , 6 ). Fig. 4 Charpy impact test results for A517 grade F steel (plate D), showing the level of toughness that can be expected with adequate hardenability. Fig. 5 Summary of dynamic-tear and drop-weight tests. Plate CK is from the fractured flange. Plate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c0048840
EISBN: 978-1-62708-220-4
... bands, which in ferritic steels are caused by the highly localized deformation associated with fast fracture or dynamic stresses. This led to the conclusion that the fracture initiated at multiple sites within one plate, starting at the root of the weld, then initiated in neighboring plates in rapid...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006928
EISBN: 978-1-62708-395-9
... the dynamic mechanical properties of plastics in tension D5045 572 Plane-strain fracture toughness and strain energy-release rate of plastic materials D5083 3268 Tensile properties of reinforced thermosetting plastics using straight-sided specimens D5279 6721 Measuring the dynamic mechanical...
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
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c9001549
EISBN: 978-1-62708-224-2
... to fatigue cracking. High notch toughness, particularly in winter conditions, is essential in steel for structural applications under dynamic loading. 4. Fatigue Failure in Overhead Yard Crane The crane in question ran on rails which were supported by I-beams as shown schematically in Fig. 4A...