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 …
Galerkin formulations of isogeometric shell analysis: Alleviating locking with Greville quadratures and higher-order elements
We propose new quadrature schemes that asymptotically require only four in-plane points
for Reissner–Mindlin shell elements and nine in-plane points for Kirchhoff–Love shell …
for Reissner–Mindlin shell elements and nine in-plane points for Kirchhoff–Love shell …
[PDF][PDF] The p-version of the finite element and finite cell methods
In the first part of this chapter the basic algorithmic structure and performance characteristics
of the p-version of the finite element method are surveyed with reference to elliptic problems …
of the p-version of the finite element method are surveyed with reference to elliptic problems …
Phase-field modeling of brittle fracture with multi-level hp-FEM and the finite cell method
S Nagaraja, M Elhaddad, M Ambati… - Computational …, 2019 - Springer
The difficulties in dealing with discontinuities related to a sharp crack are overcome in the
phase-field approach for fracture by modeling the crack as a diffusive object being described …
phase-field approach for fracture by modeling the crack as a diffusive object being described …
Non-negative moment fitting quadrature for cut finite elements and cells undergoing large deformations
Fictitious domain methods, such as the finite cell method, simplify the discretization of a
domain significantly. This is because the mesh does not need to conform to the domain of …
domain significantly. This is because the mesh does not need to conform to the domain of …
[HTML][HTML] Efficient CAD-integrated isogeometric analysis of trimmed solids
M Meßmer, T Teschemacher, LF Leidinger… - Computer Methods in …, 2022 - Elsevier
This publication presents a robust and efficient approach for fully CAD-integrated analyses
of solids, which aims to reduce the current modeling effort for static and transient problems …
of solids, which aims to reduce the current modeling effort for static and transient problems …
Higher-order meshing of implicit geometries—Part I: Integration and interpolation in cut elements
TP Fries, S Omerović, D Schöllhammer… - Computer Methods in …, 2017 - Elsevier
An accurate implicit description of geometries is enabled by the level-set method. Level-set
data is given at the nodes of a higher-order background mesh and the interpolated zero …
data is given at the nodes of a higher-order background mesh and the interpolated zero …
Efficient and robust quadratures for isogeometric analysis: Reduced Gauss and Gauss–Greville rules
This work proposes two efficient quadrature rules, reduced Gauss quadrature and Gauss–
Greville quadrature, for isogeometric analysis. The rules are constructed to exactly integrate …
Greville quadrature, for isogeometric analysis. The rules are constructed to exactly integrate …
Surrogate modeling for interactive tunnel track design using the cut finite element method
Abstract The Cut Finite Element Method (CutFEM) is recently shown to be a versatile
approach for tunnel construction modeling and settlement analysis. The CutFEM can …
approach for tunnel construction modeling and settlement analysis. The CutFEM can …
[HTML][HTML] Octree-based integration scheme with merged sub-cells for the finite cell method: Application to non-linear problems in 3D
Fictitious domain methods, such as the Finite Cell Method (FCM), allow for an efficient and
accurate simulation of complex geometries by utilizing higher-order shape functions and an …
accurate simulation of complex geometries by utilizing higher-order shape functions and an …