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elastic stress

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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
...Abstract Abstract The relationship of stress and strength gradients must be considered simultaneously in analysis of a particular type of fracture. This chapter discusses the principal elastic stress distribution in members of various shapes under different types of pure loads. A basic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870157
EISBN: 978-1-62708-344-7
...Abstract Abstract This chapter deals with the effects of fatigue in rotating shafts subjected to elastic and plastic strains associated with bending stresses. It begins with a review of the basic approach to treating low-cycle fatigue in bending, explaining that the assumption that stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870179
EISBN: 978-1-62708-344-7
... of stress concentration factors and how they are determined for the general case and for specific geometries, materials, and surface conditions. The chapter covers both elastic and plastic fatigue behaviors as well as a wide range of methods. It also explains how small nuances in loading can introduce...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060101
EISBN: 978-1-62708-355-3
... true stress-strain curve for a material that has a smooth transition between the very low strain (elastic) and the higher strain (plastic) regions of the curve. When the load is removed in the elastic region, the sample returns to its original dimensions. When this is done in the plastic region...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... showing orientation and elastic distribution of normal (tensile and compressive) and shear stress components in a shaft under pure (a) tension, (b) torsion, and (c) compression loading. Also shown is single-overload fracture behavior of ductile and brittle materials under these loading conditions (bottom...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540281
EISBN: 978-1-62708-309-6
...Abstract Abstract Large-scale yielding at the crack tip and time-dependent crack growth mechanisms, such as stress relaxation due to creep, are nonlinear behaviors requiring nonlinear analysis methods. This chapter presents two such methods, one based on elastic-plastic fracture mechanics...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630257
EISBN: 978-1-62708-270-9
... (or K I for mode I loading). Under linear-elastic conditions, the K I stress field increases from the nominal stress, approaching infinite magnitude at the crack tip ( r = 0). Fig. 10 Solid mechanics-type approach to describing stress and strain using a stress cube. (a) Expanded stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1989
DOI: 10.31399/asm.tb.dmlahtc.t60490021
EISBN: 978-1-62708-340-9
...) nonembrittled conditions, showing segregation of phosphorus due to embrittlement ( Ref 69 ). Fig. 2.13. Schematic illustration of stress fields in cracked bodies ( Ref 47 and 48 ). (a) Linear-elastic behavior. (b) Linear-elastic behavior with small-scale yielding. (c) Large-scale yielding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540001
EISBN: 978-1-62708-309-6
... elastic and plastic materials and viscous substances. It then describes the stress-strain response of two- and three-dimensional solids, explaining how to determine principle stresses and strains using Mohr’s circle and how to derive equivalent stress and strain using the von Mises relationship...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240221
EISBN: 978-1-62708-251-8
... that allow storage of high elastic energy levels Low temperatures that cause a ductile-to-brittle transition in bcc metals Large grain sizes that build up stress from dislocation pileups High strain rates that do not allow time for stress redistribution Coarse carbides or other inclusions...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... of mechanically fastened joints in composites is a direct consequence of their inherent brittleness. When a metallic structure is highly loaded, the metal will yield locally in the vicinity of the bolt hole to reduce the elastic stress concentration. However, since composites are relatively brittle, they do...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... strength (ultimate strength), yield strength (or yield point), percent elongation, and reduction of area. The first two are strength parameters; the last two indicate ductility. The stress-strain curve also is used to measure the modulus of elasticity (Young’s modulus) and the modulus of resilience...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870219
EISBN: 978-1-62708-299-0
... the plasticity can be ignored, or in other words, when the plastic zone ahead of the propagating crack is below a certain value and a triaxial or plane-strain stress state exists at the crack tip, linear elastic fracture mechanics (LEFM) can be applied to describe the relationship between crack length...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.9781627083096
EISBN: 978-1-62708-309-6
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
... Fig. 4.9. Typical stress-strain hysteresis loop generated in a constant-strain low-cycle fatigue test. Fig. 4.10. Correlation between total strain range and plastic strain range ( Ref 12 ). Fig. 4.39. Schematic diagrams showing waveforms of temperature, strain, and stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060251
EISBN: 978-1-62708-355-3
... stress waves in flyer plate experiment. See text for details and explanation of symbols. Propagation speeds are always relative to the material into which the wave is moving. Strain occurs only at the wave fronts. The amplitude of the E wave in Fig. 6 is known as the Hugoniot elastic limit (HEL...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1983
DOI: 10.31399/asm.tb.mlt.t62860295
EISBN: 978-1-62708-348-5
.... , and Warlimont H. ( 1974 ). Thermo-elasticity, pseudoelasticity and the memory effects associated with martensitic transformations . J. Mater. Sci . 9 , 1521 – 1555 . 10.1007/BF00552939 Dunne D. P. and Wayman C. M. ( 1971 ). The crystallography of ferrous martensites . Metall. Trans...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.htpa.t53310067
EISBN: 978-1-62708-346-1
..., the collision is completely elastic and can be modeled for elastic impact in accordance with the Hertzian equations. Stage 2: With the impact, the elastic boundary (flow stress) of the metal is exceeded, plastic deformation sets in, and the impact can no longer be regarded as purely elastic. Plastic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610101
EISBN: 978-1-62708-303-4
... a summary of Griffith’s work and the subsequent development of linear elastic and elastic-plastic fracture mechanics. It includes detailed illustrations and examples, familiarizing readers with the steps involved in determining strain energy release rates, stress intensity factors, J-integrals, R-curves...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780055
EISBN: 978-1-62708-281-5
... or stress relaxation, deformation maps can be combined with linear elastic calculations of part deformation to predict the time- and temperature-dependent deformation of the part. The cross-flow stiffness and strength of injection-molded glass-filled materials is sometimes only 50% of the stiffness...