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Existence and decay in non linear viscoelasticity

Jaime E. Muñoz Rivera, Félix P. Quispe Gómez (2003)

Bollettino dell'Unione Matematica Italiana

In this work we study the existence, uniqueness and decay of solutions to a class of viscoelastic equations in a separable Hilbert space H given by u t t + M ( [ u ] ) A u - 0 t g ( t - τ ) N ( [ u ] ) A u d τ = 0 , in L 2 ( 0 , T ; H ) u ( 0 ) = u 0 , u t ( 0 ) = u 1 where by u t we are denoting [ u ( t ) ] = ( u ( t ) , u t ( t ) , ( A u ( t ) , u t ( t ) ) , A 1 2 u ( t ) 2 , A 1 2 u t ( t ) 2 , A u ( t ) 2 5 A : D ⁢...

Existence and uniqueness for the three-dimensional thermoelasticity system in shape memory problems

Irena Pawłow, Antoni Żochowski (2003)

Banach Center Publications

A thermodynamically consistent model of shape memory alloys in three dimensions is studied. The thermoelasticity system, based on the strain tensor, its gradient and the absolute temperature, generalizes the well-known one-dimensional Falk model. Under simplifying structural assumptions we prove global in time existence and uniqueness of the solution.

Existence of a solution for a nonlinearly elastic plane membrane “under tension”

Daniel Coutand (2010)

ESAIM: Mathematical Modelling and Numerical Analysis

A justification of the two-dimensional nonlinear “membrane” equations for a plate made of a Saint Venant-Kirchhoff material has been given by Fox et al. [9] by means of the method of formal asymptotic expansions applied to the three-dimensional equations of nonlinear elasticity. This model, which retains the material-frame indifference of the original three dimensional problem in the sense that its energy density is invariant under the rotations of 3 , is equivalent to finding the critical points...

Extended Hashin-Shtrikman variational principles

Petr Procházka, Jiří Šejnoha (2004)

Applications of Mathematics

Internal parameters, eigenstrains, or eigenstresses, arise in functionally graded materials, which are typically present in particulate, layered, or rock bodies. These parameters may be realized in different ways, e.g., by prestressing, temperature changes, effects of wetting, swelling, they may also represent inelastic strains, etc. In order to clarify the use of eigenparameters (eigenstrains or eigenstresses) in physical description, the classical formulation of elasticity is presented, and the...

Extended irreversible thermodynamics in hypoelasticity

Sebastiano Giambò, Annunziata Palumbo (1988)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

The constitutive equations of rate type for a class of thermo-hypo-elastic materials are derived within the framework of the extended irreversible thermodynamics.

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