[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 …

Determining the role of microstructural topology on the mechanical performance of nacre-inspired composites using a phase-field model

S Das, AU Pillai, A Chemenghat… - Materials Today …, 2023 - Elsevier
Bio-inspired composites are celebrated for their remarkable strength and fracture toughness,
often surpassing the properties of their constituent materials. A prime example of this …

Stabilized finite elements for the solution of the Reynolds equation considering cavitation

H Gravenkamp, S Pfeil, R Codina - Computer Methods in Applied …, 2024 - Elsevier
The Reynolds equation, combined with the Elrod algorithm for including the effect of
cavitation, resembles a nonlinear convection–diffusion–reaction (CDR) equation. Its solution …

Adaptive regularization, discretization, and linearization for nonsmooth problems based on primal–dual gap estimators

F Févotte, A Rappaport, M Vohralík - Computer Methods in Applied …, 2024 - Elsevier
We consider nonsmooth partial differential equations associated with a minimization of an
energy functional. We adaptively regularize the nonsmooth nonlinearity so as to be able to …

A micropolar phase-field model for size-dependent electro-mechanical fracture

AK Behera, AU Pillai, A Das, MM Rahaman - International Journal of …, 2025 - Elsevier
This article proposes a micropolar phase-field model for size-dependent brittle fracture in
solids under electro-mechanical loading conditions. Considering displacement, micro …

A residual stress-dependent mixed-mode phase-field model: Application to assessing the role of tailored residual stresses on the mechanical performance of ceramic …

AK Behera, MM Rahaman, D Roy - Mechanics of Materials, 2024 - Elsevier
Ceramics offer several attractive properties of industrial relevance, eg high strength and
hardness, low thermal conductivity, and chemical inertness in critical environments. There is …