Nitsche's method for interface problems in computa‐tional mechanics

P Hansbo - GAMM‐Mitteilungen, 2005‏ - Wiley Online Library
We give a review of Nitsche's method applied to interface problems, involving real or
artificial interfaces. Applications to unfitted meshes, Chimera meshes, cut meshes, fictitious …

Weakly enforced essential boundary conditions for NURBS‐embedded and trimmed NURBS geometries on the basis of the finite cell method

M Ruess, D Schillinger, Y Bazilevs… - International Journal …, 2013‏ - Wiley Online Library
Enforcing essential boundary conditions plays a central role in immersed boundary
methods. Nitsche's idea has proven to be a reliable concept to satisfy weakly boundary and …

An extended pressure finite element space for two-phase incompressible flows with surface tension

S Groß, A Reusken - Journal of Computational Physics, 2007‏ - Elsevier
We consider a standard model for incompressible two-phase flows in which a localized force
at the interface describes the effect of surface tension. If a level set (or VOF) method is …

Multilevel global–local techniques for adaptive ductile phase-field fracture

F Aldakheel, N Noii, T Wick, O Allix… - Computer Methods in …, 2021‏ - Elsevier
This paper outlines a rigorous variational-based multilevel Global–Local formulation for
ductile fracture. Here, a phase-field formulation is used to resolve failure mechanisms by …

A new fictitious domain approach inspired by the extended finite element method

J Haslinger, Y Renard - SIAM Journal on Numerical Analysis, 2009‏ - SIAM
The purpose of this paper is to present a new fictitious domain approach inspired by the
extended finite element method introduced by Moës, Dolbow, and Belytschko in [Internat. J …

A polytree-based adaptive approach to limit analysis of cracked structures

H Nguyen-Xuan, S Nguyen-Hoang, T Rabczuk… - Computer Methods in …, 2017‏ - Elsevier
We in this paper present a novel adaptive finite element scheme for limit analysis of cracked
structures. The key idea is to develop a general refinement algorithm based on a so-called …

A stabilized Lagrange multiplier method for the finite element approximation of contact problems in elastostatics

P Hild, Y Renard - Numerische Mathematik, 2010‏ - Springer
In this work we consider a stabilized Lagrange (or Kuhn–Tucker) multiplier method in order
to approximate the unilateral contact model in linear elastostatics. The particularity of the …

A polytree‐based adaptive polygonal finite element method for topology optimization

H Nguyen‐Xuan - International Journal for Numerical Methods …, 2017‏ - Wiley Online Library
We propose a highly effective approach using a novel adaptive methodology to perform
topology optimization with polygonal meshes, called polytree meshes. Polytree is a …

The enriched space–time finite element method (EST) for simultaneous solution of fluid–structure interaction

A Zilian, A Legay - International Journal for Numerical Methods …, 2008‏ - Wiley Online Library
The paper introduces a weighted residual‐based approach for the numerical investigation of
the interaction of fluid flow and thin flexible structures. The presented method enables one to …

Non-intrusive coupling of a 3-D Generalized Finite Element Method and Abaqus for the multiscale analysis of localized defects and structural features

H Li, P O'Hara, CA Duarte - Finite Elements in Analysis and Design, 2021‏ - Elsevier
This paper presents a multiscale computational framework able to resolve localized defects
and features such as cracks and welds in large structures. It couples Abaqus models and 3 …