AN A PRIORI ERROR ANALYSIS OF A PROBLEM INVOLVING MIXTURES OF CONTINUA WITH GRADIENT ENRICHMENT

被引:0
|
作者
Bazarra, Noelia [1 ]
Fernandez, Jose R. [1 ]
Magana, Antonio [2 ]
Magana, Marc [3 ]
Quintanilla, Ramon [2 ]
机构
[1] Univ Vigo, Dept Matemat Aplicada1, Campus Lagoas Marcosende S-N, Vigo 36310, Spain
[2] ESEIAAT UPC, Dept Matemat, Colom 11, Barcelona 08222, Spain
[3] Univ Autenoma Barcelona, Fac Ciencies, Barcelona 08193, Spain
关键词
Mixtures; strain gradient; finite elements; discrete energy decay; a priori error estimates; numerical simulations; EXPONENTIAL DECAY; THERMOELASTIC MIXTURE; INTERACTING CONTINUA; EXISTENCE;
D O I
10.4208/ijnam2024-1006
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this work, we study a strain gradient problem involving mixtures. The variational formulation is written as a first -order in time coupled system of parabolic variational equations. An existence and uniqueness result is recalled. Then, we introduce a fully discrete approximation by using the finite element method and the implicit Euler scheme. A discrete stability property and a priori error estimates are proved. Finally, some one- and two-dimensional numerical simulations are performed.
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页码:165 / 180
页数:16
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