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compression testing

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040025
EISBN: 978-1-62708-300-3
...Abstract Abstract This chapter explains how to determine flow stress and forgeability using data from tensile tests, compression tests, ring tests, and torsion tests. It describes sample preparation, tooling and equipment, test procedures, error sources, and data plotting techniques. It also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060239
EISBN: 978-1-62708-355-3
... for three principal groups of engineering materials: metals, ceramics, and polymers (including fiber-reinforced polymers). The chapter describes the factors that influence the selection of tensile testing procedures for low-temperature evaluation, along with a comparison of tensile and compression tests...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870351
EISBN: 978-1-62708-314-0
...Abstract Abstract This chapter discusses composite testing procedures, including tension, compression, shear, flexure, and fracture toughness testing as well as adhesive shear, peel, and honeycomb flatwise tension testing. It also discusses specimen preparation, environmental conditioning...
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 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...
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
... notch. Source: Ref 8 Fig. 18 Unnotched and notched properties of an alloy steel. Source: Ref 10 Fig. 20 Dilatation under hydrostatic pressure. Source: Ref 2 Fig. 19 Barreling during compression test. Source: Ref 2 Fig. 21 Bauschinger effect. Source: Ref 2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870267
EISBN: 978-1-62708-344-7
... and operating overload, the importance of surface cleanliness and finish, and the role of inspection, testing, replacement, and repair in safe-life and fail-safe designs. Examples highlighting the benefits and potential pitfalls of proof loading tests are included as well. coaxing compressive stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040083
EISBN: 978-1-62708-300-3
... simulation is the cylinder upset test as discussed in Chapter 4 because (a) during the test the deformation is done in a state of compressive stress, which represents well the true stress state of most forging processes and (b) the test can be done for a large strain. However, even in the simplest cylinder...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... a coating and lubrication line for cold forging [ Shen et al., 1992 ]. There are many bench-type simulation tests designed to evaluate friction and lubrication in forging operations [ Schey, 1983 ]. Here, however, only two of the most common tests are presented, i.e., the ring compression test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040247
EISBN: 978-1-62708-300-3
... the as-preheated grain size for a forging operation. From these tests, the grain growth model for preheating of a particular billet pedigree was developed. This model was then used to establish the preheated grain size (d 0 ) just prior to subsequent forging operations. 19.2.2 Compression Tests Laboratory...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060001
EISBN: 978-1-62708-343-0
... of creep strain and strain rate equations, explains how to determine creep constants, and reviews the findings of several studies on cyclic loading. It also discusses the development of a novel test that measures the cyclic creep-rupture resistance of materials in tension and compression. activation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060111
EISBN: 978-1-62708-343-0
... strength vary with temperature. For the other inelastic strain-range components, isothermal tests will invariably involve large enough mean stresses to cause concern. A CP test, for example, conducted by tensile stress hold and reversed by rapid compressive plasticity, is likely to involve a greater...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.fdsm.t69870075
EISBN: 978-1-62708-344-7
.... This advantage, however, was soon lost once low-cycle fatigue testing came into its own with the development of reliable extensometers, closed-loop servocontrol systems, bending-free alignment fixtures, and backlash-free grips that permitted reliable axial loading into compression as well as tension. Once...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290193
EISBN: 978-1-62708-319-5
... the extension and load. The extension is used to calculate the strain and eventually the fracture ductility. The load is converted to stress by using the initial (minimum) cross-sectional area. Powder-binder mixtures are not ductile, so they are tested in bending or compression tests. Tensile testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040237
EISBN: 978-1-62708-300-3
... referred to as the flow stress curve, is usually obtained by the cylinder compression test. To be applicable without errors or corrections, the cylindrical sample must be upset without any barreling ( Fig. 18.1 ), i.e., a state of uniform stress must be maintained in the sample at all times during the test...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2011
DOI: 10.31399/asm.tb.cfw.t52860095
EISBN: 978-1-62708-338-6
... compressive properties ASTM D 695-08 Standard Test Method for Compressive Properties of Rigid Plastics ASTM D 3410/D 3410M-03(2008) Standard Test Method for Compressive Properties of Polymer-Matrix Composite Materials with Unsupported Gage Section by Shear Loading ASTM D 5449/D 5449M-93(2006...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400033
EISBN: 978-1-62708-316-4
... 4.1 , the hydraulic bulge test ( Ref 4.14 – 4.16 ), plane strain compression ( Ref 4.7 ), shear test ( Ref 4.17 , 4.18 ), and in-plane compression test ( Ref 4.19 ) are used to estimate the flow stress of the sheet materials at room temperature ( Table 4.3 ). Only the tensile and hydraulic bulge...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
..., and lubrication on the heat transfer coefficient and the friction shear factor were evaluated simultaneously. A schematic of ring compression tests used for the measurement of interface heat transfer coefficient is shown in Fig. 6.8 . Two pairs of thermocouples were embedded in different depths of the bottom...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060163
EISBN: 978-1-62708-355-3
... of flexural or bending tests. In these tests, the specimen is subjected to a complex stress state including tension, compression, shear, and significant stress gradients. In interpreting the results of these flexure tests, the maximum tensile stress present in the specimen at failure is usually reported...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540047
EISBN: 978-1-62708-309-6
... and compression tests. For example, when a tensile bar is stretched to a length that is twice the original length, the conventional linear strain is then: (Eq 2.18a) ε t = ( 2 L 0 − L 0 ) / L 0 = 1.0 where the subscript t stands for tension. It seems logical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400089
EISBN: 978-1-62708-316-4
... The twist compression test (TCT) is widely used in laboratories for quick evaluation of lubricants and additives. It is frequently used to estimate the COF for stamping lubricants for different tool coatings and zinc-coated sheet materials as a function of time ( Ref 7.17 ). In the TCT, a rotating annular...