|Asymptotic model of linearly visco-elastic Kelvin–Voigt type plates via Trotter theory |
Auteur(s): Terapabkajornded Yotsawat, Orankitjaroen Somsak, Licht C.
(Article) Publié: Advances In Difference Equations, vol. 2019 p.186 (2019)
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We confirm the study (Licht in C. R., Méc. 341:697-700, 2013) devoted to the quasi-static response for a visco-elastic Kelvin-Voigt plate whose thickness goes to zero. For each thickness parameter, the quasi-static response is given by a system of partial differential equations with initial and boundary conditions. Reformulating scaled systems into a family of evolution equations in Hilbert spaces of possible states with finite energy, we use Trotter theory of convergence of semi-groups of linear operators to identify the asymptotic behavior of the system. The asymptotic model we obtain and the genuine one have the same structure except an occurrence of a new state variable. Eliminating the new state variable from our asymptotic model leads to the asymptotic model in (Licht in C. R., Méc. 341:697-700, 2013) which involves an integro-differential system.