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cylindrical compression test

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Published: 01 January 2005
Fig. 4 Cylindrical compression-test specimens: (left) undeformed specimen; (center) specimen compressed with friction (note crack); (right) specimen compressed without friction More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009009
EISBN: 978-1-62708-185-6
...Abstract Abstract This article describes the use of compression tests, namely, cylindrical compression, ring compression, and plane-strain compression tests at elevated temperatures. It discusses the effects of the temperature, strain rate, and deformation heating on metals during...
Image
Published: 01 January 2005
Fig. 2 Cylindrical (left), tapered (center), and flanged (right) compression-test specimens More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009008
EISBN: 978-1-62708-185-6
...Abstract Abstract A cylindrical specimen compressed with friction at the die surfaces does not remain cylindrical in shape but becomes bulged or barreled. Tensile stresses associated with the bulging surface make the upset test a candidate for workability testing. This article discusses test...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003265
EISBN: 978-1-62708-176-4
... locus. Modifications of the cylindrical compression-test specimen geometry have been used to enhance the range of strains over which fracture can be measured ( Ref 11 ). Fig. 8 Locus of fracture strains (workability) determined from compression test with friction. Source: Ref 10...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003320
EISBN: 978-1-62708-176-4
... and tension-compression can be loaded independently in phase or out of phase. Figure 5 shows a biaxial fatigue testing machine of this type. Figure 6 shows the extensometer used to measure axial and angular displacement. A cylindrical specimen ( Fig. 7 ) is the standard geometry for this type of testing...
Image
Published: 01 January 2005
Fig. 19 (a) Localized strains on the bulging cylindrical surface of a compression test specimen. (b) Variation of strains with aspect ratio ( h/D ) of specimen and friction conditions. Source: Ref 28 More
Image
Published: 01 December 2009
Fig. 17 Range of free surface strain combinations for compression tests having cylindrical ( Fig. 14 ), tapered, and flanged ( Fig. 16 ) edge profiles. The ranges shown are approximate, and they may overlap a small amount. More
Image
Published: 01 January 2005
Fig. 9 Range of free surface strain combinations for compression tests having cylindrical ( Fig. 2 ), tapered, and flanged ( Fig. 8 ) edge profiles. The ranges shown are approximate and they may overlap a small amount. More
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001032
EISBN: 978-1-62708-161-0
... of torsion testing to evaluate the forgeability of carbon and alloy steels. Fig. 3 Ductility of two AISI carbon and alloy steels determined in hot torsion tests. Arrows denote suitable hot-working temperatures. Compression Test The compression test, in which a cylindrical specimen is upset...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... the articles “Torsion Testing to Assess Bulk Workability” and “Hot Working Simulation by Hot Torsion Testing.” Fig. 3 Ductility determined in hot torsion tests. AISI, American Iron and Steel Institute. Source: Ref 2 Compression Test The compression test, in which a cylindrical specimen...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003295
EISBN: 978-1-62708-176-4
... sensitivities determined by torsion tests on a variety of materials compare more or less well with those determined by axial tests. Another advantage of torsion testing at high strain rates is the absence of geometric dispersion. When an axial stress pulse (tension or compression) travels down a cylindrical...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... workability tests, such as the tension test, ring compression test, plane-strain compression test, bend test, indentation test, and forgeability test. It concludes with information on the role of the finite-element modeling software used in workability analysis. bend test bulk forming processes...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003258
EISBN: 978-1-62708-176-4
... of stress and lubrication conditions, the direction of the crack may be at 45° to the long axis of the specimen, but it can be longitudinal as well, particularly if seams (a defect developed during prior processing) are present on the cylindrical surfaces of the specimen. Compression tests at elevated...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006032
EISBN: 978-1-62708-175-7
... Powder Industries Federation ISO 3927, “Metallic Powders Excluding Powders for Hardmetals—Determination of Compactibility (Compressibility) in Uniaxial Compression,” by the International Standards Organization Typically, a cylindrical or rectangular test piece is made by pressing powder in a die...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005870
EISBN: 978-1-62708-167-2
... during the quenching process Temperature interval between the beginning and end of martensite transformation and the cooling rate in this zone An image of the magnitude of internal stresses during the quenching process can be provided by test quenching cylindrical specimens from a temperature...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005461
EISBN: 978-1-62708-196-2
... on its cylindrical surface through changes in workpiece geometry and interface friction conditions. In addition, a wealth of information is available on this test through research by a number of investigators ( Ref 28 , Ref 29 , Ref 30 , Ref 31 , Ref 32 , Ref 33 ). Upset Compression Testing...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003296
EISBN: 978-1-62708-176-4
... loading test samples in compression, tension, or torsion. Conventional mechanical testing frames can be used to achieve nominally constant loading rates for limited plastic strains and thereby a constant engineering strain rate. Typical screw-driven or servohydraulic testing machines are routinely used...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009004
EISBN: 978-1-62708-185-6
..., the cylindrical surface of a compression test undergoes various combinations of axial and circumferential strains, depending on the aspect ratio and the friction at the die contact surfaces ( Fig. 2 ). When no friction exists, the ratio of circumferential strain to axial strain is ε 1 /ε 2 = −½. According...