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tension-compression fatigue loading

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610377
EISBN: 978-1-62708-303-4
... International , 1987 , p 43 11. Rotem A. and Nelson H.G. , Residual Strength of Composite Laminates Subjected to Tension-Compressive Fatigue Loading , J. Compos. Technol. Res. , Vol 12 , 1990 , p 76 – 84 10.1520/CTR10182J 12. Whitney J.M. , “ Fatigue Characterization...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... composites under sustained high compressive loads. Fig. 14.4 Typical tension and compression behavior of aramid composite. Source: Ref 9 Although not as good as carbon fiber composites ( Fig. 14.1 ), aramid composites perform very well in fatigue. For aramids, tension-tension fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540319
EISBN: 978-1-62708-309-6
... , p 461 – 475 10.1098/rspa.1981.0163 8.16. Rotem A. and Nelson H.G. , Residual Strength of Composite Laminates Subjected to Tension-Compressive Fatigue Loading , J. Compos. Technol. Res. , Vol 12 , 1990 , p 76 – 84 10.1520/CTR10182J 8.17. Whitney M. , “ Fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630071
EISBN: 978-1-62708-270-9
..., which are simplified models of complex stress systems. Free-body diagrams of shafts in the pure types of loading (tension, torsion, and compression) are the simplest; they then can be related to more complex types of loading. This chapter discusses the principles of these simplest loading systems...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780417
EISBN: 978-1-62708-281-5
... specimens; mode II shear and shear fatigue failures were obtained using end-notched flexural specimens. Translaminar tension and compression specimens used either the notched-bend bar specimens with four-point loading or the specimen configurations defined in ASTM D 3039, “Tensile Properties of Fiber-Resin...
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 increases, as shown in Fig. 1(b) . A transverse hole also concentrates the tensile stress at the sides of the hole, as shown in Fig. 1(c) . Fig. 1 Elastic stress distribution: pure tension. T, tension. C, compression. (a) No stress concentration. (b) Surface stress concentrations. (c...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540121
EISBN: 978-1-62708-309-6
...): (Eq 3.3e) σ a = ( σ max − σ min ) / 2 Amplitude ratio: (Eq 3.3f) A = σ a / σ m Constant-amplitude fatigue tests are conducted by stress controlled either in tension-tension or tension-compression. Compression-compression loading...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... fastener holes and interference-fit fasteners have been developed to improve fatigue life. Both cold working and interference-fit fasteners set up residual compressive stress fields in the metal immediately adjacent to the hole ( Fig. 9 ). The applied tension stress during fatigue loading must...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630035
EISBN: 978-1-62708-270-9
.... Residual stress systems may be described in three scales of magnitude: macro, micro, and lattice. Macroscale: This scale encompasses the entire cross section of a part. If the areas near the surface are in residual compression, for example, the areas near the center must be in residual tension...
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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290207
EISBN: 978-1-62708-306-5
... ( Fig. 8.20 ). The applied tension stress during fatigue loading must then overcome the residual compressive stress field, before the hole becomes loaded in tension. The fatigue improvement due to cold working in 2024-T851aluminum is shown in Fig. 8.21 . Somewhat surprisingly, the fatigue strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
.... The cross section of a typical gear-driven system is shown in Fig. 7.11 . The screws are rotated by a variable-control motor and drive the moveable crosshead up or down. This motion can load the specimen in either tension or compression, depending on how the specimen is fixtured and tested. Screw-driven...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
... and compression loads are carried by the fibers, while the matrix distributes the loads between the fibers in tension and stabilizes the fibers and prevents them from buckling in compression. The matrix is also the primary load carrier for interlaminar shear (i.e., shear between the layers) and transverse (90...
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
... of Fig. 14.1 . Although a majority of the fatigue data in the literature is for fully reversed bending, there are also axial test machines ( Fig. 14.3 ) that are capable of tension and compression loading in both the high- and low-cycle fatigue ranges. These modern test frames are closed-loop...
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
... states on the surface are desirable because in fatigue loading, the tensile fatigue stresses have to overcome the residual compressive stresses before the metal starts being loaded in tension. However, if the working is severe, so that deformation occurs throughout the cross section of the metal...
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
... Abstract The mechanical behavior of a material is its response to an applied load or force. Important mechanical properties are strength, hardness, stiffness, and ductility. This chapter discusses three principal ways in which these properties are tested: tension, compression, and shear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870449
EISBN: 978-1-62708-314-0
... diameter t —thickness of the joint elements w —width of the plate e —edge distance P —load dt —bearing area loaded in compression 2et —total shear-out area loaded in shear ( w - d )/ t —net section loaded in tension wt —gross section loaded in tension Fig. 17.1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... is subjected to external loads in tension, compressive residual stresses counteract the applied tensile stresses and are thus beneficial. In contrast, a part that contains tensile residual stresses will yield plastically at a lower value of applied stress than a part without residual stress. With time, tensile...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... mechanical properties such as transverse tension, shear, and compression strength. Thus, environmental degradation is a significant concern for structural applications in which the ability to carry high loads is required, and particularly in applications under long sustained loading. Fig. 8.15 Fatigue...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730023
EISBN: 978-1-62708-283-9
... of loading. Under compression, as in rolling, the ductility is far higher than that measured in a tension test. The hardness test is a simple way of characterizing a material’s resistance to plastic deformation. In a hardness test, an indenter is pressed into the surface of a material under a fixed force...