[HTML][HTML] A level set-based interface-enriched topology optimization for the design of phononic crystals with smooth boundaries

SJ van den Boom, R Abedi, F van Keulen… - Computer Methods in …, 2023 - Elsevier
Phononic crystals can be designed to show band gaps—ranges of frequencies whose
propagation is strongly attenuated in the material. In essence, their working principle is …

The discontinuity‐enriched finite element method

AM Aragón, A Simone - International Journal for Numerical …, 2017 - Wiley Online Library
We introduce a new methodology for modeling problems with both weak and strong
discontinuities independently of the finite element discretization. At variance with the …

Imposition of essential boundary conditions in the material point method

M Cortis, W Coombs, C Augarde… - International Journal …, 2018 - Wiley Online Library
There is increasing interest in the material point method (MPM) as a means of modelling
solid mechanics problems in which very large deformations occur, eg in the study of …

Weak impositions of Dirichlet boundary conditions in solid mechanics: a critique of current approaches and extension to partially prescribed boundaries

K Lu, CE Augarde, WM Coombs, Z Hu - Computer Methods in Applied …, 2019 - Elsevier
In this article we first review various approaches developed to date for the weak imposition
of Dirichlet boundary conditions in fictitious domain analysis for elasticity problems. The …

[HTML][HTML] The discontinuity-enriched finite element method for multiple intersecting discontinuities

D Liu, J Zhang, AM Aragón, A Simone - Computer Methods in Applied …, 2025 - Elsevier
Abstract We extend the Discontinuity-Enriched Finite Element Method (DE-FEM) to simulate
intersecting discontinuities, such as those encountered in polycrystalline materials, multi …

[HTML][HTML] A stable discontinuity-enriched finite element method for 3-D problems containing weak and strong discontinuities

J Zhang, SJ van den Boom, F van Keulen… - Computer Methods in …, 2019 - Elsevier
A new enriched finite element technique, named the Discontinuity-Enriched Finite Element
Method (DE-FEM), was introduced recently for solving problems with both weak and strong …

On the stability and interpolating properties of the hierarchical interface-enriched finite element method

AM Aragón, B Liang, H Ahmadian, S Soghrati - Computer Methods in …, 2020 - Elsevier
Abstract The Hierarchical Interface-enriched Finite Element Method (HIFEM) is a technique
for solving problems containing discontinuities in the field gradient using finite element …

[HTML][HTML] Fully decoupling geometry from discretization in the Bloch–Floquet finite element analysis of phononic crystals

SJ van den Boom, F van Keulen, AM Aragón - Computer Methods in …, 2021 - Elsevier
An immersed enriched finite element method is proposed for the analysis of phononic
crystals (PnCs) with finite element (FE) meshes that are completely decoupled from …

Akantu: an HPC finite-element library for contact and dynamic fracture simulations

N Richart, G Anciaux, E Gallyamov, L Frérot… - Journal of Open …, 2024 - joss.theoj.org
Complex, nonlinear, and transient phenomena are at the heart of modern research in
mechanics of materials. For example, the buildup and release of elastic energy at geological …

An interface-enriched generalized finite element formulation for locking-free coupling of non-conforming discretizations and contact

D Liu, SJ van den Boom, A Simone… - Computational …, 2022 - Springer
We propose an enriched finite element formulation to address the computational modeling
of contact problems and the coupling of non-conforming discretizations in the small …