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A method for calculating differential constitutive equation of linear viscoelastic composite model [PDF]

open access: yesScience Progress, 2021
The stress–strain behaviors of viscoelastic materials are often simulated using a model composed of various combinations of springs and dampers. With the increase in the number of springs and dampers, the viscoelastic characteristics of the model will ...
Peng Peihuo
doaj   +2 more sources

Chip Formation Mechanisms When Cutting Amorphous Alloy with Cubic Boron Nitride Tools Based on Constitutive Equation Parameter Optimisation [PDF]

open access: yesMicromachines
Owing to potential inaccuracies in the current stress–strain curve used for constructing the Johnson–Cook (JC) constitutive model of amorphous alloys, the parameters of the JC constitutive equation were derived using Oxley’s cutting theory, negative ...
Jinguang Du   +4 more
doaj   +2 more sources

Comment on Cimmelli, V.A. Interpretation of Second Law of Thermodynamics in Extended Procedures for the Exploitation of the Entropy Inequality: Korteweg Fluids and Strain-Gradient Elasticity as Examples. Entropy 2024, 26, 293 [PDF]

open access: yesEntropy
In a recent paper (Entropy 2024, 26, 293), Cimmelli makes use of the constitutive equation of Korteweg fluids to justify the introduction of an extended method to the classical Coleman–Noll procedure.
Samuel Paolucci
doaj   +2 more sources

A Constitutive Equation of Turbulence

open access: yesFluids, 2021
Even though applications of direct numerical simulations are on the rise, today the most usual method to solve turbulence problems is still to apply a closure scheme of a defined order.
Peter W. Egolf, Kolumban Hutter
doaj   +1 more source

Strain Modified Constitutive Equation and Processing Maps of High Quality 20MnCr5(SH) Gear Steel

open access: yesCrystals, 2021
In order to develop the high-temperature forging process of high-quality 20MnCr5(SH) gear steel, according to the physical characteristics of high-temperature hot deformation of 20MnCr5(SH), the single pass hot pressing test was carried out in the ...
Jingcheng Yang   +3 more
doaj   +1 more source

Temperature rises and constitutive equation of homogenized 6063 aluminum alloy for extrusion

open access: yesMaterials Research Express, 2023
The effect of temperature rises on the flow stress and constitutive equation of homogenized 6063 aluminum alloy was studied by theoretical analysis, numerical simulation, and experiments.
Shikang Li   +4 more
doaj   +1 more source

Study on Mechanical Properties and Constitutive Equation of Earth Materials under Uniaxial Compression

open access: yesApplied Sciences, 2022
In this study, the uniaxial compressive mechanical properties of earth materials are tested, and the effects of four influencing factors, such as shape, size, curing age, and loading rate, on the strength, damage pattern, and stress-strain curve of the ...
Jianlong Yan   +3 more
doaj   +1 more source

ACEOS – The additive and constitutive equation of state in the n-alkane homologous series

open access: yesChemical Thermodynamics and Thermal Analysis, 2022
The critical volumeVc, the relation between the critical temperature and the pressure Tc / Pc and the product PcVc2 depend linearly on the number of carbons in a homologous series as a consequence of the theory of corresponding states. This suggests that
Miguel Gonzalo Arenas-Quevedo   +2 more
doaj   +1 more source

A consistent isotropic spectral constitutive equation: The infinitesimal strain depends nonlinearly on the stress

open access: yesApplications in Engineering Science, 2020
Recently, there have been several developments in nonlinear infinitesimal-strain stress constitutive relations to describe the response of elastic bodies.
M.H.B.M. Shariff, R. Bustamante
doaj   +1 more source

Effective Rheology of Bi-viscous Non-newtonian Fluids in Porous Media

open access: yesFrontiers in Physics, 2020
We model the flow of bi-viscous non-Newtonian fluids in porous media by a square lattice where the links obey a piece-wise linear constitutive equation.
Laurent Talon, Alex Hansen
doaj   +1 more source

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