Stability and conditioning of immersed finite element methods: analysis and remedies

F de Prenter, CV Verhoosel, EH van Brummelen… - … Methods in Engineering, 2023 - Springer
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 …

Physics-informed neural networks with hard constraints for inverse design

L Lu, R Pestourie, W Yao, Z Wang, F Verdugo… - SIAM Journal on …, 2021 - SIAM
Inverse design arises in a variety of areas in engineering such as acoustic, mechanics,
thermal/electronic transport, electromagnetism, and optics. Topology optimization is an …

The software design of Gridap: a finite element package based on the Julia JIT compiler

F Verdugo, S Badia - Computer Physics Communications, 2022 - Elsevier
We present the software design of Gridap, a novel finite element library written exclusively in
the Julia programming language, which is being used by several research groups world …

Topological nature of dislocation networks in two-dimensional moiré materials

R Engelke, H Yoo, S Carr, K Xu, P Cazeaux, R Allen… - Physical Review B, 2023 - APS
Moiré superlattice patterns at the interface of two-dimensional (2D) van der Waals (vdW)
materials, arising from a small displacement between similar lattices, have been extensively …

Adaptive numerical simulations with Trixi. jl: A case study of Julia for scientific computing

H Ranocha, M Schlottke-Lakemper, AR Winters… - arXiv preprint arXiv …, 2021 - arxiv.org
We present Trixi. jl, a Julia package for adaptive high-order numerical simulations of
hyperbolic partial differential equations. Utilizing Julia's strengths, Trixi. jl is extensible, easy …

[HTML][HTML] Finite element interpolated neural networks for solving forward and inverse problems

S Badia, W Li, AF Martín - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
We propose a general framework for solving forward and inverse problems constrained by
partial differential equations, where we interpolate neural networks onto finite element …

Linking ghost penalty and aggregated unfitted methods

S Badia, E Neiva, F Verdugo - Computer Methods in Applied Mechanics …, 2022 - Elsevier
In this work, we analyse the links between ghost penalty stabilisation and aggregation-
based discrete extension operators for the numerical approximation of elliptic partial …

Thermodynamically consistent volumetric–deviatoric decomposition-based phase-field model for thermo-electro-mechanical fracture

AK Behera, KH Sudeep, MM Rahaman - Engineering Fracture Mechanics, 2023 - Elsevier
Using a volumetric–deviatoric decomposition of strain, we propose a novel phase-field
model for thermo-electro-mechanical fracture and provide an open-source finite element …

Combined diffused material interface and hybrid phase-field model for brittle fracture in heterogeneous composites

AU Pillai, AK Behera, MM Rahaman - Engineering Fracture Mechanics, 2023 - Elsevier
In this article, we propose a novel approach for modeling brittle fracture in heterogeneous
composites using a combined diffused material interface method and a hybrid phase-field …

Robust high-order unfitted finite elements by interpolation-based discrete extension

S Badia, E Neiva, F Verdugo - Computers & Mathematics with Applications, 2022 - Elsevier
In this work, we propose a novel formulation for the solution of partial differential equations
using finite element methods on unfitted meshes. The proposed formulation relies on the …