This study introduces the conic section arc elements in 2D and 2.5D finite element method (FEM). Elements are obtained by deforming an edge in a standard triangular element through a coordinate transformation. This allows to completely eliminate the geometrical error in structures composed of circular, elliptical, hyperbolic and parabolic arcs. The element order is defined independently of the geometrical description of the boundary, allowing the use of simple meshers. Previously available FEM codes can be straightforwardly modified to introduce the conic section boundaries.
Exact conic section arc elements in 2D and 2.5D FEM using a coordinate transformation / Codecasa L.; Gentili G.G.; Khosronejad M.; Pelosi G.; Selleri S.. - In: IET MICROWAVES, ANTENNAS & PROPAGATION. - ISSN 1751-8725. - STAMPA. - 15:(2021), pp. 1108-1116. [10.1049/mia2.12107]
Exact conic section arc elements in 2D and 2.5D FEM using a coordinate transformation
Pelosi G.;Selleri S.
2021
Abstract
This study introduces the conic section arc elements in 2D and 2.5D finite element method (FEM). Elements are obtained by deforming an edge in a standard triangular element through a coordinate transformation. This allows to completely eliminate the geometrical error in structures composed of circular, elliptical, hyperbolic and parabolic arcs. The element order is defined independently of the geometrical description of the boundary, allowing the use of simple meshers. Previously available FEM codes can be straightforwardly modified to introduce the conic section boundaries.
| File | Dimensione | Formato | |
|---|---|---|---|
|
IET - Gentili - mia2.12107.pdf
accesso aperto
Tipologia:
Pdf editoriale (Version of record)
Licenza:
Creative commons
Dimensione
1.32 MB
Formato
Adobe PDF
|
1.32 MB | Adobe PDF |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
