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creep relaxation

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Published: 01 January 2006
Fig. 33 (a) Radiation creep relaxation of shear stresses in springs of 20% cold-worked (CW) type 316 stainless steel, along with modeling curves showing the effects of radiation-induced creep on load relaxation of stainless steel. Source: Ref 156 . (b) Radiation creep relaxation of alloy X More
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003286
EISBN: 978-1-62708-176-4
... Abstract This article provides the theoretical background for understanding many of the physical processes relevant to mechanical testing methods, experimental results, and analytical approaches described in this volume. creep testing stress-relaxation testing creep deformation Stress...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... Abstract This article describes the general aspects of creep, stress relaxation, and yielding for homogeneous polymers. It then presents creep failure mechanisms in polymers. The article discusses extrapolative methods for the prediction of long-term creep failure in polymer materials...
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Published: 01 January 2006
Fig. 32 The effects of radiation-induced creep on load relaxation of stainless steel at 288 °C (550 °F). Source: Ref 155 More
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Published: 01 January 2001
Fig. 6 Viscoelasticity as shown by the creep and stress relaxation behavior over time More
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Published: 01 November 1995
Fig. 31 Torsion creep and stress relaxation of bisphenol A-base polycarbonate, MW = 40,000. Source: Ref 37 More
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Published: 01 January 2000
Fig. 3 Derivation of stress-relaxation curve for step-down creep test. (a) Constant extension approximated by a step-down creep test. (b) Stress-time relation More
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Published: 01 January 1997
Fig. 31 Comparison of predicted time to 0.5% creep based on stress-relaxation measurements at 650 °C (1200 °F) for an austenitic iron-base alloy with measurements made on conventional creep tests. SRT, stress-relaxation tests More
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Published: 15 May 2022
Fig. 5 Simplified schematic of creep and stress-relaxation behavior in polymeric materials. Adapted from Ref 32 , 33 More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004147
EISBN: 978-1-62708-184-9
... for irradiation-assisted stress-corrosion cracking. The article addresses the effects of various radiation factors on corrosion. These include radiation-induced segregation at grain boundaries, radiation hardening, mode of deformation, radiation creep relaxation, and radiolysis. The article discusses a variety...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003290
EISBN: 978-1-62708-176-4
..., but since the total strain is held constant, this can only be achieved if the elastic strain decreases with a corresponding decrease in the stress. Creep at a fixed total strain, therefore, results in a time dependent stress relaxation. A common practical example where stress relaxation is a major...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005506
EISBN: 978-1-62708-197-9
..., and so on. The remainder of this article discusses approximate and advanced solution techniques that can be employed in practice for simulation of residual stress relief. Stress Relaxation and Creep Deformation Stress relaxation and creep deformation are essentially the same material phenomenon...
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Published: 01 January 2000
Fig. 28 Schematic hysteresis loops encountered in isothermal creep-fatigue testing. (a) Pure fatigue, no creep. (b) Tensile stress hold, strain limited. (c) Compressive stress hold, strain limited. (d) Tensile and compressive stress hold, strain limited. (e) Tensile strain hold, stress More
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005133
EISBN: 978-1-62708-186-3
... is consistent with the mechanism suggested by Rösler and Arzt. Fig. 2 Impact of initial state on relaxation behavior In addition to the effect of the evolving precipitate microstructure on creep, one must also consider what effect the applied stress has on the aging process. The impact of applied...
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
... temperatures. The article describes the stages of the creep curve, discusses processes involved in the extrapolation of creep data, and summarizes notable creep constitutive models and continuum damage mechanics models. It demonstrates the effects of stress relaxation and redistribution on the remaining life...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003288
EISBN: 978-1-62708-176-4
.... The article presents other testing considerations and concludes with information on stress relaxation testing. creep testing creep-rupture testing creep properties rupture strength constant-load testing constant-stress testing stress relaxation testing extensometers heat-treating furnaces...
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
... strains. Analogous to the creep and stress relaxation experiments, which determine the time- and temperature-dependent functions, are the dynamic mechanical experiments, which define the frequency- and temperature-dependent functions characteristic of viscoelastic materials such as plastics. In any...
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Published: 01 January 1997
Fig. 28 Insensitivity of creep strength of IN738 to various thermal exposures as determined from stress versus creep-rate behavior calculated from stress-relaxation tests. Source: Ref 92 More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003024
EISBN: 978-1-62708-200-6
... properties as well ( Ref 11 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 ). This includes mechanical effects such as creep deformation and stress relaxation, as briefly summarized in this article. The effects of viscoelasticity on mechanical strength (such as tensile strength, fatigue strength...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002477
EISBN: 978-1-62708-194-8
..., are demonstrated. The article describes the prediction of mechanical part performance for stiffness, strength/impact, creep/stress relaxation, and fatigue. creep relaxation fatigue impact strength material design plastics stiffness stress relaxation THE KEY to any successful part development...