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Análisis numérico de un problema de contacto viscoelástico en piezoelectricidad

Authors: Barboteu, Mikaël; Fernández García, José Ramón; Ouafik, Youssef;

Análisis numérico de un problema de contacto viscoelástico en piezoelectricidad

Abstract

En este trabajo consideramos un problema de contacto sin rozamiento entre un cuerpo electro-viscoelástico y un obstáculo deformable. La ley constitutiva electroviscoelástica se utiliza para modelar el material y, para el contacto, la clásica condición de contacto de tipo respuesta normal. La formulación variacional de este problema se escribe como un problema acoplado de una ecuaci´on variacional no lineal, de primer orden en tiempo, para el campo de desplazamientos, y una ecuación variacional lineal para el potencial el´ectrico. Entonces, presentamos aproximaciones discretas basadas en el método de los elementos finitos para aproximar la variable espacial y un esquema de Euler para discretizar la derivada temporal. Demostramos un teorema general de estimación del error del que, bajo condiciones de regularidad adicionales, deducimos la convergencia lineal de estas aproximaciones. Finalmente, presentamos algunos ejemplos bidimensionales que demuestran la eficacia del algoritmo.

Country
Spain
Related Organizations
Keywords

Viscoelasticidad, Simulaciones numéricas, Estimaciones del error, Piezoelectricidad, Respuesta normal

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green