1-20 of 90 Search Results for

cyclic stress-strain curve

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006819
EISBN: 978-1-62708-329-4
... such as available material property data, cyclic stress/strain magnitude, critical flaw sizes, consequence of failure, and the location of damage, one of these three fatigue approaches may be warranted or preferred over the others. Fatigue Damage Progression Fatigue Loading Definitions S-N Curves...
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
... m ) Safe-life, finite-life Local strain concept Low-cycle fatigue curve, ε a = f ( N i ) Cyclic stress-strain (σ a -ε a ) curve Damage tolerance Fracture mechanics concept Threshold value, Δ K th Crack growth diagram, da / dN = f (Δ K , R ) Fracture toughness, K Ic...
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
..., and area reduction have been obtained. Fatigue properties including cyclic curve, strain-life and stress-life curves, and Coffin-Manson parameters have also been acquired. Fractography of the fractures/failed test sample’s surfaces, examination of the microstructure of the electroformed nickel tool...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003546
EISBN: 978-1-62708-180-1
... and k and n are defined by: (Eq 19) Δ ε p / 2 = k ( Δ σ / 2 ) n where Δε p is the plastic strain range, and k and n are the constants related to the cyclic stress-strain properties: (Eq 20) η = [ 1 + ( a / b ( 1 − a / b ) ) 2 ] 1...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... prestrained in torsion to a shear strain of 4.3×. Source (b): Ref 3 In off-axis or bending fractures, the fracture plane is often generally perpendicular with the direction of maximum principal stress, providing information about the type and direction of loading. As the fracture progresses...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... hydrostatic component relative to the deviatoric component of stress and decreases with an increase in the tensile-hydrostatic stress component. It is also possible for ductile fracture to require little energy for initiation or propagation if strain-hardening capacity is low. From the perspective...
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
... relief, induction hardening, service temperature, thermal strains, etc.) X-Ray Diffraction Theory and Residual Stress Measurement The XRD technique uses the distance between crystallographic planes, that is, d -spacing, as a strain gage. This method can only be applied to crystalline...
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
... to a fiber stress just above the tensile strength, as shown in Fig. 4 where the lower curve became essentially horizontal. This collapse load agrees with the limit-analysis collapse load of 1.5 times the load at yield. The beam made of stainless steel, which strain hardens at a rather high rate, showed...
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
.... , X-Ray Diffraction Measurement of Stresses in Post-Tensioning Tendons: Extending the Lifespan of Structures , IABSE , Zurich, Switzerland , 1995 10.1117/12.259152 21. Brauss M.E. and Pineault J.A. , Residential Strain Measurements of Steel Structures, NDE for the Energy...
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
...). Cyclic strain accumulation, or ratcheting, requires that a part be stressed by steady-state loading, either uniaxial or multiaxial, and that a cyclically varying strain in a direction other than the direction of principal stress be superimposed on the part. In ratcheting, an oscillating load or a cyclic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001136
EISBN: 978-1-62708-229-7
... and widespread failures, which is not the case. The origin of the particular high cyclic stresses could not be determined, however, and to investigate possible failure scenarios other tests were conducted, which are outlined below. Fans similar to the one that failed were strain gauged and run at operating...
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
... results in progressive localized permanent structural change and occurs in materials subjected to fluctuating stresses and strains. It may result in cracks or fracture after a sufficient number of fluctuations. Fatigue fractures are caused by the simultaneous action of cyclic stress, tensile stress...
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
... deformation is typically characterized by time-dependent strain curves, as discussed in more detail in the article “Creep and Stress Rupture Failures” in this Volume. Most (but not all) creep curves show three distinct stages, as briefly described in the following. Creep strength (i.e., the resistance...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001149
EISBN: 978-1-62708-232-7
... thermal stresses in the duct at the welds. Weather conditions (wind, rain, snow, darkness) caused changes in heat transfer from the outside surface of the duct, resulting in cyclic thermal stresses. Predictable variations in the gas temperature due to startup, normal operation, and shutdown of the furnace...
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
...-concentration effect permits local permanent plastic deformation at nominal stresses below yield. Initiation frequently occurs near free surfaces, because nominal stresses are often higher there (e.g., bending and torsion). Geometric variations at surfaces can locally elevate stresses and strains, and processes...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001659
EISBN: 978-1-62708-231-0
... deformation which, in turn, occurs due to passage of wheels and leads to an attempted expansion of the top layer of the rail. As this expansion is constrained, a residual compressive stress system is built up causing a strain equal and opposite to the plastic expansion, so that the resulting deformation...
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
... the fifth-stage compressor disk (judged to be the most crack-prone disk in the compressor) to determine the cause of the failures. Failure was attributed to high-strain low-cycle fatigue during service. It was also determined that the cyclic engine usage assumed in the original life calculations had been...
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
... located most readily by viewing the fracture surface at low magnifications (up to 30 to 50×). Fatigue has been defined as “the process of progressive localized permanent structural change occurring in a material subjected to conditions that produce fluctuating stresses or strains at some point...
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
... Sn96.5-Ag3.5 221 430 Yes Sn42-Bi58 138 280 Yes Similar to other metal alloys, solder alloys also have the stress-strain curves with elastoplastic properties. Mechanical features of the typical solder alloy include: Relatively short elastic range, compared with the yield range...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001388
EISBN: 978-1-62708-215-0
... the instruments needed for the dynamic strain measurements were limited in number. Remarkably high stresses, reaching approximately the tensile strength of the bolts, acted on the No. 4 and 29 bolts while the pile was drawn out directly without the use of the vibrohammer. The locations of these bolts corresponded...