- Tytuł:
- An enhanced XFEM for the discontinuous Poisson problem
- Autorzy:
- Stąpór, Paweł
- Powiązania:
- https://bibliotekanauki.pl/articles/140096.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
discontinuity
extended finite element method
XFEM
recovery procedure
Poisson equation
nieciągłość
rozszerzona metoda elementów skończonych
procedura odzyskiwania
równanie Poissona - Opis:
- In the paper, the extended finite element method (XFEM) is combined with a recovery procedure in the analysis of the discontinuous Poisson problem. The model considers the weak as well as the strong discontinuity. Computationally efficient low-order finite elements provided good convergence are used. The combination of the XFEM with a recovery procedure allows for optimal convergence rates in the gradient i.e. as the same order as the primary solution. The discontinuity is modelled independently of the finite element mesh using a step-enrichment and level set approach. The results show improved gradient prediction locally for the interface element and globally for the entire domain.
- Źródło:
-
Archive of Mechanical Engineering; 2019, LXVI, 1; 25-37
0004-0738 - Pojawia się w:
- Archive of Mechanical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł