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constant tensile load testing

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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
... in.) deep scratch under 200 kg (440 lb.) static load plus 90 kg (200 lb.) pulses: No cracks after 1000 cycles New wire containing a 0.08 mm (0.003 in.) deep scratch under 224 kg (494 lb.) static load plus 90 kg (200 lb.) pulses: Breakage after approximately 1000 cycles Tensile testing of (unbroken...
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
... Tensile Properties Analytical Experimental Fracture Mechanics Predictions 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) were used...
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
...-83-C-3448. 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 extension rates on the order of 10 −5 to 10 −7 cm/s ( 3 ). Tests were performed on round tensile specimens which conformed to NACE TM...
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 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 Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003516
EISBN: 978-1-62708-180-1
... , 1971 , p 230 – 242 27. Elber W. , Mathematical Modeling of Crack Growth Interaction Effects , Fatigue Crack Growth under Spectrum Loads , STP 595, American Society for Testing and Materials , 1976 , p 157 – 171 28. Bell P.D. and Wolfman A. , Equivalent Constant...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... applied to cyclic loading. In practice, the Tresca and von Mises criteria are most often used today to predict yield in isotropic constant-volume materials. The Rankine model is not often used because of its inability to predict behavior when one principal stress is negative and another positive. When...
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
.... When edge- or center-notched plate specimens are fractured in tensile loading, a portion or all of the fracture surface behind the notch can be normal (perpendicular) to the applied load, and there may be little macroscale indication of transverse contraction to indicate plastic flow prior to fracture...
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
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001789
EISBN: 978-1-62708-241-9
... with an estimation of stresses in each application to bound the problem and determine the suitability of ASB for particular union nut applications, and the likelihood of EAC observation. Materials Rising Step Load Tests Rising Step Load Tests Constant Displacement Testing Union Nut Stress Intensity...
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
... slowly. For instance, in some tests carried out under alternating direct stresses at the National Physical Laboratory the first crack 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...
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
... the geometry of the samples used in the tests. Samples with a 2–3 mm thickness were machined 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...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006779
EISBN: 978-1-62708-295-2
... stresses, the stress ratio R becomes a positive number between 0 and 1. A stress ratio R = 1 indicates no variation in stress, which corresponds with static loading. The S - N curve is the basis for fatigue design and shows the relationship between a constant stress amplitude, S a (or stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006768
EISBN: 978-1-62708-295-2
... ). Fig. 12 Effect of tensile residual stress (RS) on fracture loads as a function of test temperature. Source: Ref 43 Fig. 13 Crack-tip opening of a shot-peened and residual-stress-free Ti-6Al-4V specimen. Source: Ref 44 When applying linear elastic fracture mechanics, the residual...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003528
EISBN: 978-1-62708-180-1
... compressive residual stresses generally act to increase the crack opening thresholds for given loading stresses ( Fig. 13 ). Fig. 12 Effect of tensile residual stress (RS) on fracture loads as a function of test temperature. Source: Ref 34 Fig. 13 Crack tip opening of a shot-peened...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006781
EISBN: 978-1-62708-295-2
... temperature occurring during the test. Conversely, the OP-TMF waveform phases the maximum tensile mechanical load (again typically in the form of mechanical strain, although not always) at the same time as the minimum temperature occurring during the test. The two simplified TMF waveforms are provided in Fig...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001780
EISBN: 978-1-62708-241-9
.... Manganese sulfides have little or no effect on yield strength, ultimate tensile strength, work hardening exponent, and work hardening rate in the longitudinal direction, which makes it advantageous for simple loading applications [ 8 , 9 ]. Sulfide content is known to decrease transverse ductility...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001383
EISBN: 978-1-62708-215-0
... using various mechanical tests, including normal and slow-strain-rate tensile testing as well as sustained-load clamp tests, with and without a 5% salt solution. The appearance of both front and rear stud failures were similar in that the fracture surfaces showed no sign of fatigue beach marks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001607
EISBN: 978-1-62708-231-0
... did it satisfy the minimum tensile strength requirements. Failure of the wire rope was found to be due to fatigue; however, the ultimate fracture of the rope was the result of overload that occurred after fatigue failure had reduced the number of wire strands supporting the load. Fatigue...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001025
EISBN: 978-1-62708-214-3
... ), suggesting that the fatigue crack growth occurred under constant-amplitude loading. The orientation of the striations confirmed that the direction of crack growth was as stated above. Microscopic examination of the suspected initiation sites did not uncover corrosion pits or other anomalous initiating...