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uniaxial fatigue testing

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Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001799
EISBN: 978-1-62708-241-9
... were not found. To resolve the discrepancy, investigators created and tested uniaxial fatigue samples, and the microfeatures were nearly identical to those found on the failed shaft. The root cause of failure was determined to be fatigue, and it was concluded that cracks on the pinion shaft beneath...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001835
EISBN: 978-1-62708-241-9
... composition testing, metallurgical examination, mechanical property testing, and fractographic analysis, it was determined that the bolt failed by fatigue accelerated by stress concentration at low temperatures. The investigation also provided suggestions for avoiding similar failures. threaded...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006807
EISBN: 978-1-62708-329-4
... flaws or initiated cracks grow at unacceptable rates by creep or creep/fatigue. Ever since creep was recognized as a concern in the design of high-temperature components, the constant-stress uniaxial tension test has been, and is likely to remain, the primary means of generating creep data...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003541
EISBN: 978-1-62708-180-1
...-density polyethylene pipe. Arrows indicate the direction of crack propagation. Fig. 28 Fracture band width as a function of crack length for the polyethylene pipe shown in Fig. 27 Fig. 15 Typical load-displacement curve for a ductile polymer tested in uniaxial tension Fig. 16...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001091
EISBN: 978-1-62708-214-3
... place by torsional shear. Gas turbines Shafts (power) Torsional fatigue 4140 UNS G41400 Fatigue fracture Background Visual Examination of General Physical Features Testing Procedure and Results Discussion Conclusion Selected References Selected References • Wulpi...
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
... testing techniques and discusses the advantages and limitations of each technique when used in failure analysis. The focus is on various types of static load testing, hardness testing, and impact testing. The testing types covered include uniaxial tension testing, uniaxial compression testing, bend...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.9781627082952
EISBN: 978-1-62708-295-2
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003536
EISBN: 978-1-62708-180-1
.... Source: Ref 75 Fig. 23 Correlation between striation spacing and fatigue life of permanent mold cast modified A356 aluminum alloy specimens tested at 0.5% strain amplitude Fig. 25 Fracture surface contour map and fracture profiles obtained by using stereo photogrammetry. Source...
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
... fatigue; HCF, high-cycle fatigue; P F , probability of failure Failure in S - N testing is typically defined by fracture, which means by the total separation of the structure. The fatigue limit and the high-cycle regime of the S - N curve are usually within the linear-elastic range and can...
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
.... Experimental work obtained results consistent with Cottrell’s model using MgO ( Ref 17 ) and in iron ( Ref 18 ). As Ref 4 indicates, the work reported in Ref 13 supports such a model of dislocation interaction to create a cleavage nucleus. Specimens tested at 77 K could be made to flow plastically...
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
... with Cottrell's model using MgO ( Ref 17 ) and in iron ( Ref 18 ). As Ref 4 indicates, the work reported in Ref 13 supports such a model of dislocation interaction to create a cleavage nucleus. Specimens tested at 77 K could be made to flow plastically or to fail in a brittle manner, depending on specimen...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
... fracture surface that failed by uniaxial bending fatigue. Spectrum loading led to episodic fatigue and overload fracture prior to ultimate separation. Subcritical overload fracture regions among the beach marks are indicated by arrows. Fig. 15 Fracture through an eccentric shaft. (a) Fracture...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003517
EISBN: 978-1-62708-180-1
... and tubing. The article discusses metallurgical instabilities of steel-based alloys and nickel-base superalloys. It provides information on several life assessment methods, namely, the life fraction rule, parameter-based assessments, the thermal-mechanical fatigue, coating evaluations, hardness testing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001275
EISBN: 978-1-62708-215-0
... a measured density of 0.942 g/cm 3 (0.03403 lb/in. 3 ) while the distant material density was 0.940 g/cm 3 (0.03396 lb/in. 3 ). Both values are at the lower end of the range for this class of polyethylene. Tensile Properties Standard uniaxial tests were performed utilizing dogbone specimens...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... by buckling-induced fracture. (c) Low-cycle fatigue fracture. Source: Ref 9 Fig. 12 Part substitution that resulted in a distortion failure. (a) Distorted commercial cap screw that was used as a replacement for a hardened bolt. (b) Carry-handle flange that broke because the cap screw bent. (c...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... by buckling-induced fracture. (c) Low-cycle fatigue fracture. Source: Ref 8 Fig. 14 Deformation from threads that left impressions on the inside surface of a hole as the members sheared with respect to each other. Fig. 13 Gas-nitrided 4140 steel (27–31 HRC) drive-gear assembly...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
... SEM view of fatigue striations in medium-density polyethylene, laboratory tested at 0.5 Hz with maximum stress 30% of the yield strength. Crack growth is upward in this view. Original magnification 200×. Source: Ref 4 Fig. 50 Features observed on fatigue area of polymethyl methacrylate...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006827
EISBN: 978-1-62708-329-4
... Inelastic properties that can behave with a quite limited elongation range Nonobvious yield points in the curve Strong strain-hardening behavior after yielding Figure 1 shows the typical stress-strain curve of a solder alloy from uniaxial tension testing. Fig. 1 Typical stress-strain...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
... initiation occurs for stress curves 3 and 4, while surface initiation is expected for higher-stress levels 1 and 2. Source: Ref 10 Fig. 4 Subsurface fatigue origins (at arrows) in an induction-hardened 8.25 cm (3.25 in.) high-manganese medium-carbon steel axle laboratory tested in rotating...
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
... elastic fracture mechanics analysis, with some mention of elastic-plastic fracture mechanics analysis. The article describes the probabilistic aspects of fatigue and fracture. Information on crack-growth simulation of the material is also provided. crack-growth simulation elastic-plastic fracture...