A stability result of a Timoshenko system with a delay term in the internal feedback

2010 ◽  
Vol 217 (6) ◽  
pp. 2857-2869 ◽  
Author(s):  
Belkacem Said-Houari ◽  
Yamina Laskri
Keyword(s):  
Stability Result ◽  
Timoshenko System ◽  
Internal Feedback ◽  
Delay Term

A stability result of a Timoshenko system in thermoelasticity of second sound with a delay term in the internal feedback

2014 ◽  
Vol 21 (4) ◽  
Author(s):  
Djamel Ouchenane
Keyword(s):  
Heat Conduction ◽  
Stability Result ◽  
Well Posedness ◽  
Second Sound ◽  
Timoshenko System ◽  
Wave Speeds ◽  
One Dimensional ◽  
Delay Term ◽  
Semigroup Method ◽  
Cattaneo’S Law

AbstractIn this paper, we consider a one-dimensional linear thermoelastic system of Timoshenko type with a delay term in the feedback. The heat conduction is given by Cattaneo's law. Under an appropriate assumption between the weight of the delay and the weight of the damping, we prove the well-posedness of the problem. Furthermore, an exponential stability result is shown without the usual assumption on the wave speeds. To achieve our goals, we make use of the semigroup method and the energy method.

scholarly journals Existence and general stabilization of the Timoshenko system of thermo-viscoelasticity of type III with frictional damping and delay terms

2018 ◽  
Vol 7 (4) ◽  
pp. 547-569 ◽  
Author(s):  
Miaomiao Chen ◽  
Wenjun Liu ◽  
Weican Zhou
Keyword(s):  
Energy Estimates ◽  
Damping Term ◽  
Timoshenko System ◽  
Delay Term ◽  
Type Iii ◽  
Global Existence Of Solutions ◽  
Galerkin Approximations ◽  
Frictional Damping ◽  
Special Cases ◽  
T Tau

AbstractIn this paper, we consider the following Timoshenko system of thermo-viscoelasticity of type III with frictional damping and delay terms:\left\{\begin{aligned} &\displaystyle\rho_{1}\varphi_{tt}-K(\varphi_{x}+\psi)_% {x}=0,&&\displaystyle(x,t)\in(0,1)\times(0,\infty),\\ &\displaystyle\rho_{2}\psi_{tt}-b\psi_{xx}+K(\varphi_{x}+\psi)+\beta\theta_{x}% =0,&&\displaystyle(x,t)\in(0,1)\times(0,\infty),\\ &\displaystyle\rho_{3}\theta_{tt}-\delta\theta_{xx}+\gamma\psi_{ttx}+\int_{0}^% {t}g(t-s)\theta_{xx}(s)\,\mathrm{d}s+\mu_{1}\theta_{t}(x,t)+\mu_{2}\theta_{t}(% x,t-\tau)=0,&&\displaystyle(x,t)\in(0,1)\times(0,\infty),\end{aligned}\right.together with initial datum and boundary conditions of Dirichlet type, wheregis a positive non-increasing relaxation function and{\mu_{1},\mu_{2}}are positive constants. Under a hypothesis between the weight of the delay term and the weight of the friction damping term, we prove the global existence of solutions by using the Faedo–Galerkin approximations together with some energy estimates. Then, by introducing appropriate Lyapunov functionals, under the imposed constrain on the above two weights, we establish a general energy decay result from which the exponential and polynomial types of decay are only special cases.

scholarly journals Stability Result for a Weakly Nonlinearly Damped Porous System with Distributed Delay

2021 ◽  
Vol 19 (6) ◽  
pp. 812-825
Author(s):  
Khoudir Kibeche ◽  
Lamine Bouzettouta ◽  
Abdelhak Djebabla ◽  
Fahima Hebhoub
Keyword(s):  
Distributed Delay ◽  
Stability Result ◽  
Porous System ◽  
Nonlinear Feedback ◽  
Damping Term ◽  
General Decay Rate ◽  
Weakly Nonlinear ◽  
Delay Term ◽  
Research Areas ◽  
Speed Of Propagation

In this paper, we consider a one-dimensional porous system damped with a single weakly nonlinear feedback and distributed delay term. Without imposing any restrictive growth assumption near the origin on the damping term, we establish an explicit and general decay rate, using a multiplier method and some properties of convex functions in case of the same speed of propagation in the two equations of the system. The result is new and opens more research areas into porous-elastic system.

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