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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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