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stress severity factors

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540391
EISBN: 978-1-62708-309-6
...Abstract Abstract Stress severity factors are used in design and analysis to account for stress concentrations, variations in material properties and fabrication quality, and other analytical uncertainties. They indicate the severity of stress in areas that are prone to crack development...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090221
EISBN: 978-1-62708-266-2
...Abstract Abstract This chapter describes the conditions under which copper-base alloys are susceptible to stress-corrosion cracking (SCC) and some of the environmental factors, such as temperature, pH, and corrosion potential, that influence crack growth and time to failure. It explains...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410499
EISBN: 978-1-62708-265-5
..., carbonitriding, and nitrocarburizing. The discussion on carburizing addresses several interrelated factors, including processing principles, alloying, surface oxidation, residual stresses, bending fatigue, contact fatigue, and fracture. carbonitriding carburizing ferritic nitrocarburizing flame...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780204
EISBN: 978-1-62708-281-5
... suggested different criteria. Several parametric descriptions of craze initiation have been given in the literature, using stress, strain, and dilation as the essential criteria ( Ref 22 , 25 , 26 ). It has been suggested that the stress-intensity factor, rather than the applied stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... by composition, surface qualities, and other factors. It describes several welding processes, including arc welding, resistance welding, and friction stir welding, and addresses related issues such as welding defects, quality control, and stress relieving. The chapter also covers mechanical fastening techniques...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270070
EISBN: 978-1-62708-301-0
... subjected them to high stress concentrations in the fillet region. They also concluded that the intergranular nature of the fracture, as revealed by scanning electron fractography, pointed to hydrogen embrittlement as a contributing factor. This chapter provides a summary of the investigation along...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540121
EISBN: 978-1-62708-309-6
.... , “ Optimum Design of Joints: The Stress Severity Factor Concept ,” presented at Fifth ICAF Symposium ( Melbourne ), May 1967 • Miner M.A. , Cumulative Damage in Fatigue , Trans. ASME , Vol 67 , 1945 , p A159 • Palmgren A. , Die Lebensdauer von Kugellagern , 2 , Verein...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... The interface shear friction law uses a friction factor, f, or a shear factor, m, to quantify the interface friction. Equation 7.2 shows that the frictional shear stress, τ, is dependent on the flow stress of the deforming material, σ ¯ , and the friction factor, f, or the shear factor, m. Thus...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630063
EISBN: 978-1-62708-270-9
... the bricks themselves. Intergranular fractures are usually caused by environmental factors such as hydrogen absorption, contact with liquid metals, high temperatures, and certain corrodents when the metal is under tensile stress, as well as any other mechanism that weakens the grain boundaries. Refer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780238
EISBN: 978-1-62708-281-5
... of the cyclic and monotonic stress-strain curves for several polymers. ABS, acrylonitrile-butadiene-styrene. Source: Ref 2 Fig. 2 Stress amplitude versus cycles to failure, or S - N behavior, of several commodity plastics. PS, polystyrene; EP, epoxy; PET, polyethylene terephthalate; PMMA...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240041
EISBN: 978-1-62708-251-8
... of 10% or more. If the size factor differs by more than 15%, then solid-solution formation tends to be severely restricted. The greater the chemical affinity of two metals, the more restricted is their solid solubility. When their chemical affinity is great, they tend to form compounds rather than...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030148
EISBN: 978-1-62708-282-2
...) … … … … … … Strain rate important; embrittlement more severe at low strain rate; generally more severe in notched or precracked specimens Strain rate important; embrittlement more severe at low strain rate; always more severe in notched or precracked specimens Occurs in absence of effect on yield stress; strain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540215
EISBN: 978-1-62708-309-6
... geometries in combination with loading types have been compiled in several handbooks ( Ref 5.1 – 5.5 ). Stress-intensity factors for configurations commonly used for materials characterization, structural design, life assessment, and failure analysis are available in Ref 5.6 and 5.7 . This section...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490415
EISBN: 978-1-62708-340-9
... a growing need to assess the remaining lives of aging components. The need for life-assessment technology is driven by many economic factors. Several turbines currently in operation have been in service for more than 50,000 h and are likely to perform reliably even after exceeding the original “design life...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... at temperature. The following life-limiting factors are common to most structures and should be considered in a failure analysis and a life assessment: Material defects Fabrication practices Stress, stress concentration, and stress intensity Temperature Thermal and mechanical fatigue cycles...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490329
EISBN: 978-1-62708-340-9
..., and the factors that determine shell integrity. The discussion addresses key properties and design parameters including allowable stress, fracture toughness, the effect of microstructure and composition on embrittlement, high-temperature creep, and subcritical crack growth. The chapter also provides information...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630081
EISBN: 978-1-62708-270-9
...Abstract Abstract A brittle fracture occurs at stresses below the material's yield strength (i.e., in the elastic range of the stress-strain diagram). This chapter focuses on brittle fracture in metals and, more specifically, ferrous alloys. It lists the factors that must all be present...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130111
EISBN: 978-1-62708-284-6
... initiated cracking Alignment, vibration, balance High cycle low stress: large fatigue zone; low cycle high stress: small fatigue zone Attack morphology and alloy type must be evaluated Severity of exposure conditions may be excessive; check: pH, temperature, flow rate, dissolved oxidants...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490111
EISBN: 978-1-62708-340-9
... surface discontinuities such as nicks, notches, machining marks, die marks, and corrosion pits. Group 3 stress concentrations comprise metallurgically inherent discontinuities such as inclusions, microcracks, voids, porosity, and casting defects. Sometimes, several of these stress raisers can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060407
EISBN: 978-1-62708-261-7
... selection is for steels in an automotive exhaust system, which involves several material property requirements. Subsequent sections describe general characteristics in terms of physical properties, mechanical properties, and other factors. Fig. 17.5 Relationships among material properties, design...