Výsledky vyhledávání - "Aimi, Alessandra"

Report

Space-time boundary elements for frictional contact in elastodynamics

Autor: Aimi, Alessandra, Di Credico, Giulia, Gimperlein, Heiko

Publikováno v: Computer Methods in Applied Mechanics and Engineering 427 (2024), 117066

This article studies a boundary element method for dynamic frictional contact between linearly elastic bodies. We formulate these problems as a variational inequality on the boundary, involving the elastodynamic Poincar\'{e}-Steklov operator. The var

Externí odkaz: http://arxiv.org/abs/2405.08566

Zobrazit plný text záznamu

Report

Time domain boundary elements for elastodynamic contact

Autor: Aimi, Alessandra, Di Credico, Giulia, Gimperlein, Heiko

Publikováno v: Computer Methods in Applied Mechanics and Engineering 415 (2023), 116296

This article proposes a boundary element method for the dynamic contact between a linearly elastic body and a rigid obstacle. The Signorini contact problem is formulated as a variational inequality for the Poincar\'{e}-Steklov operator for the elasto

Externí odkaz: http://arxiv.org/abs/2307.09910

Zobrazit plný text záznamu

Report

Higher-order time domain boundary elements for elastodynamics -- graded meshes and hp versions

Autor: Aimi, Alessandra, Di Credico, Giulia, Gimperlein, Heiko, Stephan, Ernst P.

Publikováno v: Numerische Mathematik 154 (2023), 35-101

The solution to the elastodynamic equation in the exterior of a polyhedral domain or a screen exhibits singular behavior from the corners and edges. The detailed expansion of the singularities implies quasi-optimal estimates for piecewise polynomial

Externí odkaz: http://arxiv.org/abs/2305.00772

Zobrazit plný text záznamu