The second-generation shifted boundary method and its numerical analysis

NM Atallah, C Canuto, G Scovazzi - Computer Methods in Applied …, 2020 - Elsevier
Abstract Recently, the Shifted Boundary Method (SBM) was proposed within the class of
unfitted (or immersed, or embedded) finite element methods. By reformulating the original …

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 …

Feel++: A computational framework for galerkin methods and advanced numerical methods

C Prud'Homme, V Chabannes, V Doyeux… - ESAIM …, 2012 - esaim-proc.org
This paper presents an overview of a unified framework for finite element and spectral
element methods in 1D, 2D and 3D in C++ called Feel++. The article is divided in two parts …

An accurate, adaptive and scalable parallel finite element framework for the part-scale thermo-mechanical analysis in metal additive manufacturing processes

CA Moreira, MA Caicedo, M Cervera… - Computational …, 2024 - Springer
This work introduces a distributed memory machine and octree-based Finite Element (FE)
framework for modeling metal Additive Manufacturing (AM) processes. In this sense, an …

A penalty-free shifted boundary method of arbitrary order

JH Collins, A Lozinski, G Scovazzi - Computer Methods in Applied …, 2023 - Elsevier
We introduce and analyze a penalty-free formulation of the Shifted Boundary Method (SBM),
inspired by the asymmetric version of the Nitsche method. We prove its stability and …

[HTML][HTML] A shifted boundary method based on extension operators

R Zorrilla, R Rossi, G Scovazzi, C Canuto… - Computer Methods in …, 2024 - Elsevier
We consider formulations of the Shifted Boundary Method based on extrapolation operators
other than the Taylor expansion. In the specific case of the Poisson equation, we prove that …

Two-level method part-scale thermal analysis of laser powder bed fusion additive manufacturing

M Carraturo, A Viguerie, A Reali, F Auricchio - Engineering with Computers, 2022 - Springer
Numerical simulations of a complete laser powder bed fusion (LPBF) additive manufacturing
(AM) process are extremely challenging, or even impossible, to achieve without a radical …

Analysis of the shifted boundary method for the Stokes problem

NM Atallah, C Canuto, G Scovazzi - Computer Methods in Applied …, 2020 - Elsevier
The analysis of stability and accuracy of the shifted boundary method is developed for the
Stokes flow equations. The key feature of the shifted boundary method, an embedded finite …

Complex-geometry simulations of transient thermoelasticity with the Shifted Boundary Method

K Li, JG Michopoulos, A Iliopoulos, JC Steuben… - Computer Methods in …, 2024 - Elsevier
We propose a formulation of the Shifted Boundary Method, an immersed/embedded/unfitted
boundary method, for transient thermo-elasticity problems characterized by very complex …

A comparison of fictitious domain methods appropriate for spectral/hp element discretisations

PEJ Vos, R Van Loon, SJ Sherwin - Computer Methods in Applied …, 2008 - Elsevier
The fictitious domain, finite cell and fat boundary method, which are commonly adopted for
fluid–structure interaction (FSI) problems, have been considered and implemented in a …