Stability and conditioning of immersed finite element methods: analysis and remedies
This review paper discusses the developments in immersed or unfitted finite element
methods over the past decade. The main focus is the analysis and the treatment of the …
methods over the past decade. The main focus is the analysis and the treatment of the …
Anisotropic variational mesh adaptation for embedded finite element methods
Embedded or immersed boundary methods (IBM) are powerful mesh-based techniques that
permit to solve partial differential equations (PDEs) in complex geometries circumventing the …
permit to solve partial differential equations (PDEs) in complex geometries circumventing the …
High order unfitted finite element discretizations for explicit boundary representations
PA Martorell, S Badia - Journal of Computational Physics, 2024 - Elsevier
When modeling scientific and industrial problems, geometries are typically modeled by
explicit boundary representations obtained from computer-aided design software. Unfitted …
explicit boundary representations obtained from computer-aided design software. Unfitted …
[HTML][HTML] Robust numerical integration of embedded solids described in boundary representation
M Meßmer, S Kollmannsberger, R Wüchner… - Computer Methods in …, 2024 - Elsevier
Embedded and immersed methods have become essential tools in computational
mechanics, as they allow discretizing arbitrarily complex geometries without the need for …
mechanics, as they allow discretizing arbitrarily complex geometries without the need for …
Space-time unfitted finite element methods for time-dependent problems on moving domains
We propose a space-time scheme that combines an unfitted finite element method in space
with a discontinuous Galerkin time discretisation for the accurate numerical approximation of …
with a discontinuous Galerkin time discretisation for the accurate numerical approximation of …
A robust cut‐cell finite element method for Poisson's equation in three dimensions
D Li, P Papadopoulos - International Journal for Numerical …, 2024 - Wiley Online Library
This article documents a cut‐cell finite element method for solving Poisson's equation in
smooth three‐dimensional domains using a uniform, Cartesian axis‐aligned grid. Neumann …
smooth three‐dimensional domains using a uniform, Cartesian axis‐aligned grid. Neumann …
[HTML][HTML] Space–time unfitted finite elements on moving explicit geometry representations
This work proposes a novel variational approximation of partial differential equations on
moving geometries determined by explicit boundary representations. The benefits of the …
moving geometries determined by explicit boundary representations. The benefits of the …
Conditioning of a hybrid high-order scheme on meshes with small faces
We conduct a condition number analysis of a Hybrid High-Order (HHO) scheme for the
Poisson problem. We find the condition number of the statically condensed system to be …
Poisson problem. We find the condition number of the statically condensed system to be …
Neural Level Set Topology Optimization Using Unfitted Finite Elements
To facilitate widespread adoption of automated engineering design techniques, existing
methods must become more efficient and generalizable. In the field of topology optimization …
methods must become more efficient and generalizable. In the field of topology optimization …
Topologically Correct Intersection Curves of Two Trimmed Quadrics with Tolerance Control
W Shao, F Chen - Journal of Systems Science and Complexity, 2024 - Springer
Surface/surface intersection is a fundamental problem in Compute Aided Design and
Geometric Modeling since it is essential to solid modeling, numerically controlled machining …
Geometric Modeling since it is essential to solid modeling, numerically controlled machining …