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Torsional fatigue

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870105
EISBN: 978-1-62708-344-7
...., Mechanical Engineering Publications , London, UK , 1991 , p 81 – 101 5.21 Bonacuse P.J. and Kalluri S. , Elevated Temperature Axial and Torsional Fatigue Behavior of Haynes 188 , Journal of Engineering Materials and Technology , Vol. 117 , April 1995 , p 191 – 199 . ( Also see...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630117
EISBN: 978-1-62708-270-9
... in reverse and unidirectional bending indicate the bending axes. Also note the radial ratchet marks between origins of the high nominal stress fractures. In the torsional fatigue fractures (bottom row), note that unidirectional fatigue (left) is at an approximate 45° angle to the shaft axis, while reversed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060155
EISBN: 978-1-62708-343-0
... Fig. 7.9 Applicability of strain-range partitioning multiaxiality rules to prediction of Zamrik’s ( Ref 7.9 ) torsional creep-fatigue lives for AISI type 304 stainless steel at 650 °C (1200 °F). (a) Life relationships based on axial creep-fatigue data for AISI type 316 stainless steel at 705 °C...
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
... , 16 Fig. 36 Fracture planes that are 45° to the direction of loading. (a) Single-shear plane. (b) Double-shear plane. Source: Ref 18 Fig. 37 Surface of a torsional fatigue fracture in an induction-hardened 1041 (1541) steel shaft. The shaft fractured after 450 h of endurance...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
... Tension Loading Torsional Loading Compression Loading Bending Loading Fatigue Summary Stress systems are best studied by examining free-body diagrams, which are simplified models of complex stress systems. Figure 1 shows the orientation of the normal (tensile and compressive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050191
EISBN: 978-1-62708-311-9
... by induction. Although in some axles a portion of the hardened surface is used as a bearing, the primary purpose of induction hardening is to put the surface under a state of compressive residual stress. By this means, the bending and torsional fatigue life of an axle may be increased by as much as 200% over...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050155
EISBN: 978-1-62708-311-9
... heating and cooling is not as uniform as that produced during furnace tempering. It is important to examine the mechanical properties and part performance when induction tempering. These could be such properties as torsional strength, torsional fatigue life, bending strength, impact strength, and rotating...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
.... 6.32 are particularly useful for applications in which stress concentrations can cause problems in fatigue loading. Fig. 6.29 Influence of joint thickness on theoretical strength of soldered and brazed joints. From F. W. Curtis, High Frequency Induction Heating , McGraw-Hill, New York, 1950...
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
... opposite the origin. The interior, or core, is likely to have a ductile fracture with dimpled rupture on the microscale. Fig. 5 Surface of a torsional fatigue crack that caused brittle fracture of the case of an induction-hardened axle of 1541 steel. The fatigue crack originated (arrow...
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
... Stress Distributions for Simple Shapes Effect of Service Conditions on Applied Stresses Summary Tension Torsion Compression Bending Interference Fit (Press or Shrink) Convex Surfaces in Contact Direct (Transverse) Shear Thin-Wall Pressure Vessels Subsurface-Origin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130087
EISBN: 978-1-62708-284-6
... of loading the part beyond its design intent or actual physical limitations. The alternative to gradual onset of deformation is sudden onset. Examples of sudden onset deformation are buckling instability in compression of columns or torsion of tubes. A roof truss that collapses under a snow load...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870375
EISBN: 978-1-62708-344-7
...-temperature fatigue testing Fig. A.48 Torsion of a solid bar Fig. A.12 Point defects. (a) Vacancy. (b) Interstitial. (c) Foreign atom. Source: Ref A.22 Fig. A.33 Representation of relative tensile strength and ductility of ausformed steels (highly deformed) compared...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
... of time a line contact at the most; or, at the least, a point contact (more detailed information on gear tooth contact can be found in Chapter 14, “Fatigue and Life Prediction” ). As the loads are increased, the line may lengthen or even broaden, or the point may expand to a rounded area. The basic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... at a great number of cycles (10 6 to 10 9 ), which is more correctly described by a fatigue strength at a given number of cycles. In addition, a single large overload can eradicate the “endurance limit.” Tension-Tension (Axial) Fatigue Bending Fatigue Rotating Bending Fatigue Tests Torsional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610055
EISBN: 978-1-62708-303-4
... rupture on a microscale. Source: Ref 10 Fig. 23 Surface of a torsional fatigue fracture that caused brittle fracture of the case of an induction-hardened axle of 1541 steel. The fatigue crack originated (arrow) at a fillet (with a radius smaller than specified) at a change in shaft diameter...
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
...Abstract Abstract This chapter describes how notches affect the load-carrying capacity and fatigue life of materials under cyclic loads. It explains that stresses and strains can be three to four times higher in the vicinity of a notch, greatly accelerating fatigue damage. It discusses the use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.9781627083447
EISBN: 978-1-62708-344-7
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.9781627082709
EISBN: 978-1-62708-270-9
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610025
EISBN: 978-1-62708-303-4
... elongation along gage length. Source: Ref 5 Fig. 22 Schematic of torsion test. Reprinted with the permission of Cambridge University Press. Source: Ref 11 Abstract Abstract This chapter discusses the stress-strain response of materials, how it is measured, and how it used to set...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.9781627083010
EISBN: 978-1-62708-301-0