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constant tensile load testing

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006921
EISBN: 978-1-62708-395-9
... Geomembranes Using Notched Constant Tensile Load Test ,” is one example of this type of testing. Fig. 8 Stress rupture test showing regression of strength with time and stress in a particular environment The advantage of obtaining data using the constant tensile load testing apparatus...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001295
EISBN: 978-1-62708-215-0
... 90 kg (200 lb.) pulses: Breakage after approximately 1000 cycles Tensile testing of (unbroken) fatigued wire showed that its strength had been increased by cyclic loading. Breaking loads of 325 kg (715 lb.) were obtained, compared with 305 kg (670 lb.) for the same section of new wire...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006928
EISBN: 978-1-62708-395-9
... under tensile, compressive, flexural, and shear loading can be performed as either short-term tests or long-term tests of creep deformation. Data for the long-term tests are typically recorded as time-dependent displacement values at various levels of constant stress ( Fig. 15a ). This type of data...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001560
EISBN: 978-1-62708-217-4
... the compounds present in the residue. The results of these studies are also presented. Experimental Procedures Test Apparatus and Testing Procedures For the constant extension rate testing an Instron tensile testing machine, model TT-C-L, was modified using a 248:1 gear reducer to produce crosshead...
Image
Published: 01 January 2002
Fig. 4 A constant-life diagram for alloy steels that provides combined axes for more ready interpretation. Note the presence of safe-life, finite-life lines on this plot. This diagram is for average test data for axial loading of polished specimens of AISI 4340 steel (ultimate tensile strength More
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
... on the basis of quantitative fractography results is probably closer to the mean SII. Simulation Tests Spin-pit simulation tests were conducted on fully bladed disks in vacuum. Details of the spin-pit test apparatus are given in Ref 6 . Two loading sequences (constant amplitude and variable amplitude...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006917
EISBN: 978-1-62708-395-9
.... Tensile stress is required to separate the molecules for disentanglement. It is important to remember, however, that other load configurations, including bending, shear, and even compression, often result in localized tensile loads within a structure. When evaluating parts under continuous strain...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006941
EISBN: 978-1-62708-395-9
... behavior of a plastic component. The relevant time scale of interest can be examined experimentally by conducting very long time scale creep experiments for constant load behavior or shorter time scale dynamic mechanical experiments in order to apply a time-dependent viscoelastic continuum mechanics model...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001789
EISBN: 978-1-62708-241-9
... ]. During a RSL test, the specimen is loaded in a stepwise fashion to a target load and held at constant displacement during each loading step. A majority of the specimens were tested by first loading to 800 lb (3558 N), then introducing the RSL protocol, where the load was increased by 100 lb (445 N...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003544
EISBN: 978-1-62708-180-1
...-life combinations Fig. 4 A constant-life diagram for alloy steels that provides combined axes for more ready interpretation. Note the presence of safe-life, finite-life lines on this plot. This diagram is for average test data for axial loading of polished specimens of AISI 4340 steel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001852
EISBN: 978-1-62708-241-9
... at different orientations from the mould. Most locations were close to the areas where cracking had been observed. Tensile tests were conducted on a servo hydraulic fatigue rig with a 25 kN load cell. Monotonic tests were performed at strain rate of 10 –2 /s according to ASTM Standard (E8M-04). A total...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006761
EISBN: 978-1-62708-295-2
... is accomplished by gripping opposite ends of a test specimen within the load frame of a test machine. A tensile force is applied by the machine, resulting in the gradual elongation and eventual fracture of the test specimen. During this process, force-extension data, a quantitative measure of how the test item...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... of mean stress. Fig. 2 S-N curve for unnotched 2024-T4 aluminum alloy bar. Source: Ref 2 Variable-Amplitude Loading and Cumulative Damage While constant-amplitude loading is useful for defining fatigue properties and comparing test data, variable-amplitude loading, such as that shown...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006918
EISBN: 978-1-62708-395-9
... distinct regimes of crack propagation rate observed in fatigue testing under constant amplitude loading conditions. The first region is denoted by the dashed line to the left. This is the threshold and near-threshold growth region. Crack driving forces must be great enough for long cracks to be able...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006775
EISBN: 978-1-62708-295-2
... in the article “Fracture Appearance and Mechanisms of Deformation and Fracture” in this Volume. In a smooth cylindrical tensile specimen, failure most commonly initiates by inclusion-matrix interface debonding near the centerline. This results in a central fibrous region, which is normal to the applied load...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... phenomenological and, as proposed, could be applied to either failure by yield or failure by fracture. They have also been applied to cyclic loading. In practice, the Tresca and von Mises criteria are most often used today (2020) to predict yield in isotropic constant-volume materials. The Rankine model...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0048634
EISBN: 978-1-62708-225-9
... fasteners were installed in fixtures in which a constant load equivalent to 90% of the rated ultimate tensile strength could be maintained on the specimens. Stress-rupture testing was performed on lever-arm-type creep machines. Testing of any lot of pins was suspended when one pin failed (indicating...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003538
EISBN: 978-1-62708-180-1
... article in this Volume, “Fracture Appearance and Mechanisms of Deformation and Fracture.” In a smooth cylindrical tensile specimen, failure most commonly initiates by inclusion-matrix interface debonding near the centerline. This results in a central fibrous region that is normal to the applied load...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001459
EISBN: 978-1-62708-234-1
... was observed after 1.8 × 10 6 , cycles and complete failure did not occur until after a further 1.8 × 10 6 cycles although the load was maintained constant so that the average stress on the part that remained unbroken must have increased continuously. In other tests, carried out on large bars of mild steel...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006801
EISBN: 978-1-62708-329-4
...-hardening strength increase. Referencing the dog bone shapes in Fig. 1 , the tensile coupon has a rectangular cross section in the gage region at the beginning of the test. During the tensile test, the volume of metal in the gage region is constant but is redistributed, with an increase in length...