Polynomial stability of a transmission problem involving Timoshenko systems with fractional Kelvin–Voigt damping

In this work, we study the stability of a one‐dimensional Timoshenko system with localized internal fractional Kelvin–Voigt damping in a bounded domain. First, we reformulate the system into an augmented model and using a general criteria of Arendt–Batty we prove the strong stability. Next, we inves...

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Bibliographic Details
Published in:Mathematical methods in the applied sciences 2023-04, Vol.46 (6), p.7140-7179
Main Authors: Guesmia, Aissa A, Mohamad Ali, Zeinab, Wehbe, Ali, Youssef, Wael
Format: Article
Language:English
Subjects:
Bending moments
Damping
Decay rate
fractional derivative
Kelvin–Voigt damping
polynomial stability
Polynomials
Shear stress
Stability
strong Stability
Timoshenko system
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Summary:In this work, we study the stability of a one‐dimensional Timoshenko system with localized internal fractional Kelvin–Voigt damping in a bounded domain. First, we reformulate the system into an augmented model and using a general criteria of Arendt–Batty we prove the strong stability. Next, we investigate three cases: The first one when the damping is localized in the bending moment, the second case when the damping is localized in the shear stress, we prove that the energy of the system decays polynomially with rate t−1$$ {t}^{-1} $$ in both cases. In the third case, the fractional Kelvin–Voigt is acting on the shear stress and the bending moment simultaneously. We show that the system is polynomially stable with energy decay rate of type t−42−α$$ {t}^{\frac{-4}{2-\alpha }} $$, provided that the two dampings are acting in the same subinterval. The method is based on the frequency domain approach combined with multiplier technique.
ISSN:0170-4214
1099-1476
DOI:10.1002/mma.8960