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Zoltán Major, Philipp S. Stelzer, Florian Kiehas
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Pierre DuPont, Steven Lampman
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Influence of loading rate on the energy absorbed in fracturing an annealed ...
Available to PurchasePublished: 01 December 2008
Fig. 22 Influence of loading rate on the energy absorbed in fracturing an annealed ductile iron containing 2.95% Si. Testpieces were standard Charpy type with a 0.25 mm (0.010 in.) notch but were also precracked 0.76 mm (0.030 in.) by fatigue. Black circles are shear fracture; open circles
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Image
Effects of loading rate, thickness, specimen dimensions, and crack depth on...
Available to PurchasePublished: 01 January 1996
Fig. 22 Effects of loading rate, thickness, specimen dimensions, and crack depth on the ductile-to-brittle transition behavior
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Influence of temperature and loading rate on fracture toughness. (a) A533B ...
Available to PurchasePublished: 01 January 1996
Fig. 32 Influence of temperature and loading rate on fracture toughness. (a) A533B steel; σ ys ≈ 450 MPa (65 ksi). (b) QT35 steel; σ ys ≈ 600 MPa (87 ksi). (c) Ni-Cr-Mo-V rotor forging steel; σ ys ≈ 670 MPa (97 ksi). (d) 0.4C-9Ni-4Co steel; σ ys ≈ 970 MPa (140 ksi). (Yield strengths
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Published: 01 January 2000
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Published: 01 January 2000
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Test configuration and energy diagram for high-loading-rate propellant-driv...
Available to PurchasePublished: 01 January 2000
Fig. 15 Test configuration and energy diagram for high-loading-rate propellant-driven tensile testing machines
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Influence of temperature and loading rate on fracture toughness. (a) A533B ...
Available to PurchasePublished: 01 December 1998
Fig. 55 Influence of temperature and loading rate on fracture toughness. (a) A533B steel; σ ys ≅ 450 MPa (65 ksi). (b) Quenched-and-tempered 0.18C-1.2Mn-0.9Cr-1.1Ni-0.45Mo-0.07V steel; σ ys ≅ 600 MPa (87 ksi). (c) 0.3C-3.5Ni-1.7Cr-0.6Mo-0.15V rotor forging steel; σ ys ≅ 670 MPa (97 ksi). (d
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Influence of loading rate on the energy absorbed in fracturing an annealed ...
Available to PurchasePublished: 31 August 2017
Fig. 26 Influence of loading rate on the energy absorbed in fracturing an annealed ductile iron containing 2.95% Si. Testpieces were standard Charpy type with a 0.25 mm (0.010 in.) notch but were also precracked 0.76 mm (0.030 in.) by fatigue. Black circles are shear fracture; open circles
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Image
Published: 15 May 2022
Fig. 34 Determination of the loading-rate dependence of time to fracture ( t f ) and assignment of the critical dynamic loading rate ( v critdyn ) of Charpy specimens for a polyoxymethylene (POM) homopolymer
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Loading-rate dependence of fracture toughness. FBA, force-based analysis; D...
Available to PurchasePublished: 15 May 2022
Fig. 36 Loading-rate dependence of fracture toughness. FBA, force-based analysis; DKC, dynamic key curve; POM, polyoxymethylene
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Effect of specimen thickness, loading rate, and temperature on fracture tou...
Available to PurchasePublished: 01 January 1997
Fig. 8 Effect of specimen thickness, loading rate, and temperature on fracture toughness. In general, increasing the specimen thickness will decrease the fracture toughness to a limiting (or critical) value. Additionally, increasing the temperature and decreasing the loading rate will shift
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Summary of basic load rating equations for rolling-element bearings used wi...
Available to PurchasePublished: 31 December 2017
Fig. 18 Summary of basic load rating equations for rolling-element bearings used with Tables 5 through 9
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Effect of loading sequence on fatigue crack growth rate. The loading patter...
Available to PurchasePublished: 01 January 1996
Fig. 58 Effect of loading sequence on fatigue crack growth rate. The loading patterns shown in Fig. 57 were imposed on specimens of A514B steel; rationalizing the stress-intensity factor range by a root-mean-square method caused the data to fall within a single band, independent of loading
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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003302
EISBN: 978-1-62708-176-4
... indentation testing reveals a significant effect of loading rates on the hardness and the induced plastic zone size in metals and on the hardness and induced crack sizes of brittle materials. The article also explains the rebound and pendulum methods for dynamic hardness testing. metals ceramics split...
Abstract
This article describes a method for determining the dynamic indentation response of metals and ceramics. This method, based on split Hopkinson pressure bar testing, can determine rate-dependent characteristics of metals and ceramics at moderate strain rates. For example, dynamic indentation testing reveals a significant effect of loading rates on the hardness and the induced plastic zone size in metals and on the hardness and induced crack sizes of brittle materials. The article also explains the rebound and pendulum methods for dynamic hardness testing.
Book Chapter
Impact Loading and Testing
Available to PurchaseSeries: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006919
EISBN: 978-1-62708-395-9
... Abstract This article reviews the impact response of plastic components and the various methods used to evaluate it.. It describes the effects of loading rate on polymer deformation and the influence of temperature and strain rate on failure mode. It discusses the advantages and limitations...
Abstract
This article reviews the impact response of plastic components and the various methods used to evaluate it.. It describes the effects of loading rate on polymer deformation and the influence of temperature and strain rate on failure mode. It discusses the advantages and limitations of standard impact tests, the use of puncture tests for assessing material behavior under extreme strain, and the application of fracture mechanics for analyzing impact failures. It also develops and demonstrates the theory involved in the design and analysis of thin-walled, injection-molded plastic components.
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... Abstract Rolling-element bearings use rolling elements interposed between two raceways, and relative motion is permitted by the rotation of these elements. This article presents an overview of bearing materials, bearing-load ratings, and an examination of failed bearings. Rolling-element...
Abstract
Rolling-element bearings use rolling elements interposed between two raceways, and relative motion is permitted by the rotation of these elements. This article presents an overview of bearing materials, bearing-load ratings, and an examination of failed bearings. Rolling-element bearings are designed on the principle of rolling contact rather than sliding contact; frictional effects, although low, are not negligible, and lubrication is essential. The article lists the typical characteristics and causes of several types of failures. It describes failure by wear, failure by fretting, failure by corrosion, failure by plastic flow, failure by rolling-contact fatigue, and failure by damage. The article discusses the effects of fabrication practices, heat treatment and hardness of bearing components, and lubrication of rolling-element bearings with a few examples.
Book Chapter
Fracture Toughness and Fracture Mechanics
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003305
EISBN: 978-1-62708-176-4
... by explaining the ductile-to-brittle fracture transition and by correlating KId, KIc, and Charpy V-notch impact energy absorptions. It highlights the effects of constraint, temperature, and loading rate on the fracture transition. The article discusses the applications of fracture mechanism in limiting...
Abstract
The fracture-mechanics technology has significantly improved the ability to design safe and reliable structures and identify and quantify the primary parameters that affect structural integrity of materials. This article provides a discussion on fracture toughness of notched materials by explaining the ductile-to-brittle fracture transition and by correlating KId, KIc, and Charpy V-notch impact energy absorptions. It highlights the effects of constraint, temperature, and loading rate on the fracture transition. The article discusses the applications of fracture mechanism in limiting of operating stresses. It describes the mechanisms, testing methods, and effecting parameters of two main categories of fracture mechanics: linear-elastic fracture mechanics and elastic-plastic fracture mechanics. The article concludes with a discussion on the three major progressive stages of fatigue: crack initiation, crack growth, and fracture on the final cycle.
Book Chapter
Impact Toughness Testing
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003308
EISBN: 978-1-62708-176-4
... Abstract Measurement and analysis of fracture behavior under high loading rates is carried out by different test methods. This article provides a discussion on the history and types of notch-toughness tests and focuses exclusively on notch-toughness tests with emphasis on the Charpy impact test...
Abstract
Measurement and analysis of fracture behavior under high loading rates is carried out by different test methods. This article provides a discussion on the history and types of notch-toughness tests and focuses exclusively on notch-toughness tests with emphasis on the Charpy impact test. It reviews the requirements of test specimens, test machine, testing procedure and machine verification, application, and determination of fracture appearance and lateral expansion according to ASTM A370, E 23, and A 593 specifications. In addition, the article includes information on the instrumentation, standards and requirements, and limitations of instrumented Charpy impact test, which is carried out in specimens with induced fatigue precrack. The article concludes with a review of the requirements of drop weight testing and the specimens used in other notch-toughness tests.
Book Chapter
Friction and Wear of Rolling-Element Bearings
Available to PurchaseSeries: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006426
EISBN: 978-1-62708-192-4
... provides information on bearing load ratings, standard bearing geometries, rolling bearing friction factors, and wear and its control methods. It concludes with a discussion on damage modes of bearings. antifriction bearings ball bearings elastohydrodynamic lubrication friction grease lubrication...
Abstract
Rolling-element bearings, also called rolling bearings and antifriction bearings, tend to have very low friction characteristics compared to plain bearings or simple sliding bearings. This article discusses the types of rolling-element bearings, namely, ball bearings and roller bearings. It provides information on the bearing component materials. The article describes the lubrication requirements and lubrication methods, namely, elastohydrodynamic lubrication and grease lubrication. It reviews the adjustment factors influencing fatigue life of the bearing. The article also provides information on bearing load ratings, standard bearing geometries, rolling bearing friction factors, and wear and its control methods. It concludes with a discussion on damage modes of bearings.
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002470
EISBN: 978-1-62708-194-8
... toughness, including yield strength, loading rate, temperature, and material thickness. A summary of different fatigue and fracture mechanics design philosophies and their relationship with fracture toughness is provided. The article concludes with information on the examples of fracture toughness in design...
Abstract
Fracture toughness is the ability of a material to withstand fracture in the presence of cracks. This article focuses on the use of fracture toughness as a parameter for engineering and design purposes. Both linear elastic and elastic-plastic fracture mechanics concepts are reviewed as they relate to fracture toughness and design process. The article explores the use of plane strain fracture toughness, crack-tip opening displacement, and the J-integral as the criteria for the design and safe operation of structures and mechanical components. It discusses the variables affecting fracture toughness, including yield strength, loading rate, temperature, and material thickness. A summary of different fatigue and fracture mechanics design philosophies and their relationship with fracture toughness is provided. The article concludes with information on the examples of fracture toughness in design.
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