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Stress relaxation

About: Stress relaxation is a research topic. Over the lifetime, 12959 publications have been published within this topic receiving 270815 citations.


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Journal ArticleDOI
TL;DR: In this article, a coupled oxidation-constitutive approach is proposed to describe the effect of the phase transformations caused by local internal and external oxidation processes on the constitutive behav- iour of the metallic coating.

223 citations

Journal ArticleDOI
TL;DR: In this article, the residual stresses that develop during cooling of a metal/ceramic strip are calculated analytically, and the optimum undercooling and reheating conditions needed to produce a stress-free strip, at the operational temperature, are calculated, and specific results are presented for the system Cu/A2, O2.
Abstract: Residual stresses that develop during cooling of a metal/ ceramic strip are calculated analytically. It is shown that the metal may behave elastically or plastically (with full or partial plasticity) depending on the mechanical properties, the thickness of the two constituents, and the mismatch in thermal expansion. Residual stresses are also calculated for a sequence consisting of constrained undercooling, removal of the constraint, and reheating. It is demonstrated that reheating, which results in elastic stress relaxation, may be used to eliminate the residual stress. The optimum undercooling and reheating conditions needed to produce a stress-free strip, at the operational temperature, are calculated, and specific results are presented for the system Cu/A2, O2.

223 citations

Journal ArticleDOI
TL;DR: In this paper, the confining pressure and axial pressure effects on the time-dependent stress-strain behavior of salt rock are analyzed quantitatively based on a number of uniaxial and triaxial creep test results.

223 citations

Journal ArticleDOI
TL;DR: Etude sur un polyethylene lineaire et un copolymere ethylene-butene-1, entre 175 o K et 260 o K as discussed by the authors, entre 170 o K and 260 O K
Abstract: Etude sur un polyethylene lineaire et un copolymere ethylene-butene-1, entre 175 o K et 260 o K

222 citations

Journal ArticleDOI
TL;DR: In this paper, the shear-thinning behavior of a liquid is represented in terms of a relaxation time, defined by the ratio η 0/G 0 of initial viscous and elastic constants.
Abstract: The shear-thinning behaviour of a liquid is represented in terms of a relaxation timeλ, defined by the ratioη 0/G0 of initial viscous and elastic constants. The relationship provides a very simple basis for the evaluation ofλ andG 0 from viscosity/shear data. Results are compared with relaxation times and moduli from primary normal-stress measurement, from stress relaxation and from direct measurement of recoverable shear strain. Good agreement is found but there is experimental evidence the recoverable shear strainγ e is related to normal stressN 1 and shear stressσ byγ e = N1/3σ, which does not agree with the theoretical prediction of eitherWeissenberg orLodge.

221 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023145
2022390
2021266
2020276
2019270
2018281