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stress concentration

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090341
EISBN: 978-1-62708-266-2
... concentrations at flaw tips. As a result, even relatively small flaws (20 to 50 μm in radius) can cause glasses and ceramics to fail. This chapter examines the propensity of flaws to grow in glass and ceramic materials exposed to different environments, especially water, at stresses well below those that would...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630023
EISBN: 978-1-62708-270-9
... both the stress and strength gradients of metal parts with and without stress concentrations and under different types of loading is provided. The chapter also describes the effect of service conditions on applied stresses. fracture strength gradients stress stress distribution IN ANY...
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 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. This appendix...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... concentration due to weld shape and joint geometry; stress concentration due to weld imperfections; and residual welding stresses. Inspection and characterization of welds are described in the final section of this chapter. cast iron fusion welding residual stress solid-state transformation steel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240243
EISBN: 978-1-62708-251-8
... occurs. It describes the most effective methods of improving fatigue life. The chapter also explains the effect of geometrical stress concentrations on fatigue. In addition, it explores the environmental effects of corrosion fatigue, low-temperature fatigue, high-temperature fatigue, and thermal fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240201
EISBN: 978-1-62708-251-8
.... Important tensile properties that can be determined by the tensile test include yield strength, ultimate tensile strength, ductility, resilience, and toughness. The chapter describes the effects of stress concentrations on ductile metals under cyclic loads. Other topics covered include combined stresses...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610147
EISBN: 978-1-62708-303-4
... to crack propagation and how stress concentrations affect fatigue life. It also discusses fatigue life improvement methods and design approaches. fatigue crack growth rates fatigue crack initiation fatigue failures fatigue-life prediction high-cycle fatigue low-cycle fatigue FATIGUE...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630013
EISBN: 978-1-62708-270-9
... the effects of temperature variations on mechanical properties, both in tension and in compression. The nonlinear behavior of gray cast iron caused by the graphite flakes is then described. Finally, the effect of stress concentrations on high-strength metals is considered. elastic deformation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610001
EISBN: 978-1-62708-303-4
... fracture and explains how they reshaped design philosophies, procedures, and tools. It also discusses the influence of material and manufacturing defects, operating conditions, stress concentration and intensity, temperature and pressure, and cyclic loading, all of which play a role in the onset of fatigue...
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 with a...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270189
EISBN: 978-1-62708-301-0
... on the fracture characteristics, as described in the report, the vane failed in fatigue due to a crack that initiated in an area of stress concentration. fatigue failure fractography water turbine runner The runner of a hydroelectric turbine failed by breakage of one of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090303
EISBN: 978-1-62708-266-2
... Abstract Although zirconium resists stress-corrosion cracking (SCC) where many alloys fail, it is susceptible in Fe3+- and Cu2+-containing solutions, concentrated HNO3, halogen vapors, mercury, cesium, and CH3OH + halides. This chapter explains how composition, texture, stress levels, and...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540373
EISBN: 978-1-62708-309-6
... S.G. , Anisotropic Plates (translated from the 2nd Russian ed.), Gordon & Breach , 1968 A2.5. Nuismer R.J. and Whitney J.M. , Uniaxial Failure of Composite Laminates Containing Stress Concentrations , Fracture Mechanics of Composites , STP 593, ASTM , 1975 , p 117...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... any location in the cross section, in the absence of stress concentrations. ( Figures 2 and 3 show examples of tensile fractures.) Fig. 2 Typical cup-and-cone fracture of a ductile annealed 1035 steel in a cylindrical tensile specimen. This type of fracture originates near the center of the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780199
EISBN: 978-1-62708-281-5
... concentration. The crazes form as thin sheets that are approximately 0.1 to 10 μm (4 to 400 μm.) thick and spread as a planar zone. Within the craze, the density is on the order of 50% of the original density. The creep, stress relaxation, and yield behavior for crazes is quite different than it is for shear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090257
EISBN: 978-1-62708-266-2
... kind. Intergranular SCC has been related to localized galvanic attack of the matrix when coupled with cathodic Mg 17 Al 12 grain-boundary precipitates ( Ref 9.26 , 9.28 – 9.30 ). Fairman and Bray ( Ref 9.28 ) have suggested that this preferential corrosion also produces a stress concentration...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030126
EISBN: 978-1-62708-282-2
... environmentally induced or assisted crack propagation. However, in this discussion, the focus is on the normal usage of the term as defined subsequently. One frequent misconception is that SCC is the result of stress concentration at corrosion-generated surface flaws (as quantified by the stress-intensity...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090271
EISBN: 978-1-62708-266-2
... imposed tensile stress levels, avoiding stress concentrators in component design, relieving residual stresses from fabrication and other sources, and introducing surface compressive stresses (by shot peening, for example). The metallurgical and environmental strategies for prevention of titanium alloy SCC...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090043
EISBN: 978-1-62708-266-2
... generally associated with a notch or other stress concentrator. Initiation from corrosion pits is also common. There are exceptions to surface initiation. Hydrogen blistering, also called hydrogen-induced cracking (HIC), a form of environmentally assisted cracking can cause internal crack initiation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090001
EISBN: 978-1-62708-266-2
... propagation. However, this discussion focuses on the normal usage of the term as defined subsequently. One common misconception is that SCC is the result of stress concentration at corrosion-generated surface flaws (as quantified by the stress-intensity factor, K ); when a critical value of stress...