Results 21 to 30 of about 157 (62)

Time decay in dual-phase-lag thermoelasticity: critical case  [PDF]

open access: yes, 2018
This note is devoted to the study of the time decay of the onedimensional dual-phase-lag thermoelasticity. In this theory two delay parameters tq and t¿ are proposed. It is known that the system is exponentially stable if tq < 2t¿ [22].
Liu, Zhuangyi   +1 more
core   +2 more sources

General decay in a Timoshenko-type system with thermoelasticity with second sound

open access: yesAdvances in Nonlinear Analysis, 2015
In this article, we consider a vibrating nonlinear Timoshenko system with thermoelasticity with second sound. We discuss the well-posedness and the regularity of solutions using the semi-group theory.
Ayadi Mohamed Ali   +3 more
doaj   +1 more source

Effect of viscosity on wave propagation in anisotropic thermoelastic medium with three-phase-lag model [PDF]

open access: yes, 2012
The aim of the present paper is to study the wave propagation in anisotropic viscoelastic medium in the context of the theory threephase- lag model of thermoelasticity.
Abbas Ibrahim A.   +2 more
core   +1 more source

ОN NON-STATIONARY HEAT TRANSFER IN ANISOTROPIC BODIES WITH GENERAL ANISOTROPY AND GIVEN DISTRIBUTED HEAT SOURCES

open access: yes, 2017
A new analytical solution is obtained for the first initial-boundary problem of heat transfer in an anisotropic plate with general anisotropy (non-zero off-diagonal components of thermal conductivity tensor) and given heat sources distributed over space ...
V. Formalev   +3 more
semanticscholar   +1 more source

Global attractors for the coupled suspension bridge system with temperature [PDF]

open access: yes, 2016
This paper deals with the longterm properties of the thermoelastic nonlinear string-beam system related to the well-known Lazer-McKenna suspension bridge model. In particular no mechanical dissipation occurs in the equations, since the loss of energy is
Abdel-Ghaffar   +29 more
core   +1 more source

An a priori error analysis of a porous strain gradient model [PDF]

open access: yes, 2022
In this work, we consider, from the numerical point of view, a boundary-initial value problem for non-simple porous elastic materials. The mechanical problem is written as a coupled hyperbolic linear system in terms of the displacement and porosity ...
Baldonedo, Jacobo   +3 more
core   +1 more source

Analysis of thermal cycles and phase transformations during multi-pass ARC weld surfacing of steel casts taking into account heat of the weld

open access: yes, 2018
In this work, a model of phase transformations during multipass weld surfaced steel casts is presented. In the temperature field calculation algorithm, the influence of the heat of overlaying beads and a self-cooling of previously overlayed beads have ...
J. Winczek, M. Gucwa, K. Makles
semanticscholar   +1 more source

Global existence result for phase transformations with heat transfer in shape memory alloys [PDF]

open access: yes, 2011
We consider three-dimensional models for rate-independent processes describing materials undergoing phase transformations with heat transfer. The problem is formulated within the framework of generalized standard solids by the coupling of the momentum ...
Paoli, Laetitia, Petrov, Adrien
core   +2 more sources

Uniqueness for a high order ill posed problem [PDF]

open access: yes, 2022
In this work, we study a high order derivative in time problem. First, we show that there exists a sequence of elements of the spectrum which tends to infinity and therefore, it is ill posed. Then, we prove the uniqueness of solutions for this problem by
Fernández, Jose R.   +1 more
core   +1 more source

Approximation by finite elements, existence and uniqueness for a model of stratified thermoviscoplastic materials

open access: yes, 2006
abstract In the present paper we consider for a < x < b, 0 < t < T, the system of partial differential equations $$ \begin{array}{l} \displaystyle{\rho(x) {\partial v \over \partial t} - {\partial \over \partial x} \left(\mu(x,\theta) {\partial v \over ...
N. Charalambakis, F. Murat
semanticscholar   +1 more source

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