In this paper, a dynamic viscoelastic problem is numerically studied. The variational problem is written in terms of the velocity field and it leads to a parabolic linear variational equation. A fully discrete scheme is introduced by using the finite element method to approximate the spatial variable and an Euler scheme to discretize time derivatives. An a priori error estimates result is recalled, from which the linear convergence is derived under suitable regularity conditions. Then, an a posteriori error analysis is provided, extending some preliminary results obtained in the study of the heat equation and quasistatic viscoelastic problems. Upper and lower error bounds are obtained. Finally, some two-dimensional numerical simulations are presented to show the behavior of the error estimators.
Mots clés : viscoelasticity, dynamic problems, fully discrete approximations, a posteriori error estimates, finite elements, numerical simulations
@article{M2AN_2011__45_5_925_0, author = {Fern\'andez, J. R. and Santamarina, D.}, title = {An \protect\emph{a posteriori} error analysis for dynamic viscoelastic problems}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis }, pages = {925--945}, publisher = {EDP-Sciences}, volume = {45}, number = {5}, year = {2011}, doi = {10.1051/m2an/2011002}, zbl = {1267.74052}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an/2011002/} }
TY - JOUR AU - Fernández, J. R. AU - Santamarina, D. TI - An a posteriori error analysis for dynamic viscoelastic problems JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 2011 SP - 925 EP - 945 VL - 45 IS - 5 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an/2011002/ DO - 10.1051/m2an/2011002 LA - en ID - M2AN_2011__45_5_925_0 ER -
%0 Journal Article %A Fernández, J. R. %A Santamarina, D. %T An a posteriori error analysis for dynamic viscoelastic problems %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2011 %P 925-945 %V 45 %N 5 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2011002/ %R 10.1051/m2an/2011002 %G en %F M2AN_2011__45_5_925_0
Fernández, J. R.; Santamarina, D. An a posteriori error analysis for dynamic viscoelastic problems. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 45 (2011) no. 5, pp. 925-945. doi : 10.1051/m2an/2011002. http://www.numdam.org/articles/10.1051/m2an/2011002/
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