نتایج جستجو برای: kelvin voigt model

تعداد نتایج: 2108252  

Journal: :Physics of Fluids 2023

In this paper, the stability of viscoelastic tapered rotors with internal flow is investigated. The constitutive equation material described on basis Kelvin–Voigt model. Using Hamilton's principle, governing motion for rotor system formulated. Galerkin discretization technique then employed to discrete partial differential equations. Thus, complex frequencies in first two modes simply supported...

Journal: :MRS Advances 2021

Abstract A new two-dimensional nanomaterial—Titanium Carbide MXene (Ti 3 C 2 -MXene)—was reported in 2011. In this work, the microscale models of Ti -MXene nanomaterial are considered with polymer matrix. The nanocomposites modeled using nacre-mimetic brick-and-mortar assembly configurations due to enhanced mechanical properties and interlocking mechanism between (brick) matrices (mortar). matr...

2008
Frédéric Dias

In classical tsunami-generation techniques, one neglects the dynamic sea bed displacement resulting from fracturing of a seismic fault. The present study takes into account these dynamic effects. Earth’s crust is assumed to be a Kelvin-Voigt material. The seismic source is assumed to be a dislocation in a viscoelastic medium. The fluid motion is described by the classical nonlinear shallow wate...

2015
Pei Pei Mohammad A. Rammaha Daniel Toundykov

Weak solutions and blow-up for wave equations of p-Laplacian type with supercritical sources" (2015). This paper investigates a quasilinear wave equation with Kelvin-Voigt damping, u t t − ∆ p u − ∆u t = f (u), in a bounded domain Ω ⊂ R 3 and subject to Dirichlét boundary conditions. The operator ∆ p , 2 < p < 3, denotes the classical p-Laplacian. The nonlinear term f (u) is a source feedback t...

2002
Damir B. Khismatullin Ali Nadim

The small-amplitude radial oscillations of a gas microbubble encapsulated by a viscoelastic solid shell and surrounded by a slightly compressible viscoelastic liquid are studied theoretically. The Kelvin–Voigt and 4-constant Oldroyd models are used to describe the viscoelastic properties of the shell and liquid, respectively. The equation for radial oscillation is derived using the method of ma...

Journal: :SIAM J. Math. Analysis 2013
Tomás Roubícek

An adhesive unilateral contact of elastic bodies with a small viscosity in the linear Kelvin-Voigt rheology at small strains is scrutinized. The flow-rule for debonding the adhesive is considered rate-independent and unidirectional. The asymptotics for the viscosity or for external loading speed approaching zero is proved in some special cases, in particular when inertia is neglected or when de...

2015
A. Pandey J. H. Snoeijer

Lubrication flows appear in many applications in engineering, biophysics, and in nature. Separation of surfaces and minimisation of friction and wear is achieved when the lubrication fluid builds up a lift force. In this paper we analyse soft lubricated contacts by treating the solid walls as viscoelastic: soft materials are typically not purely elastic, but dissipate energy under dynamical loa...

2008
Jeongho Ahn J. AHN

In this work, we consider dynamic frictionless contact with adhesion between a viscoelastic body of the Kelvin-Voigt type and a stationary rigid obstacle, based on the Signorini’s contact conditions. Including the adhesion processes modeled by the bonding field, a new version of energy function is defined. We use the energy function to derive a new form of energy balance which is supported by n...

Journal: :Mathematics and Computers in Simulation 2009
Denys Dutykh Frédéric Dias

In classical tsunami-generation techniques, one neglects the dynamic sea bed displacement resulting from fracturing of a seismic fault. The present study takes into account these dynamic effects. Earth’s crust is assumed to be a Kelvin-Voigt material. The seismic source is assumed to be a dislocation in a viscoelastic medium. The fluid motion is described by the classical nonlinear shallow wate...

Journal: :Journal of Mechanics 2022

Abstract Viscoelastic damping material has been widely used in engineering machinery to absorb vibration and noise. Dynamic behavior of the viscoelastic is mainly affected by temperature frequency. Classical dynamic equations have complex structures with multiple ambiguous parameters. So a novel variable-order fractional constitutive model (VOFC) established based on operator. Then are derived ...

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