A transient global-local generalized FEM for parabolic and hyperbolic PDEs with multi-space/time scales

L He, AJ Valocchi, CA Duarte - Journal of Computational Physics, 2023 - Elsevier
This paper presents a novel Generalized Finite Element Method with global-local
enrichment (GFEM gl) to solve time-dependent parabolic and hyperbolic problems with …

An adaptive global–local generalized FEM for multiscale advection–diffusion problems

L He, AJ Valocchi, CA Duarte - Computer Methods in Applied Mechanics …, 2024 - Elsevier
This paper develops an adaptive algorithm for the Generalized Finite Element Method with
global–local enrichment (GFEM gl) for transient multiscale PDEs. The adaptive algorithm …

Non-intrusive implementation of a wide variety of Multiscale Finite Element Methods

RA Biezemans, C Le Bris… - Comptes …, 2023 - comptes-rendus.academie-sciences …
Multiscale Finite Element Methods (MsFEMs) are now well-established finite element type
approaches dedicated to multiscale problems. They first compute local, oscillatory, problem …

The multiscale finite element method for nonlinear continuum localization problems at full fine-scale fidelity, illustrated through phase-field fracture and plasticity

LH Nguyen, D Schillinger - Journal of Computational Physics, 2019 - Elsevier
The residual-driven iterative corrector scheme recently presented by the authors for linear
problems has opened a pathway to achieve the best possible fine-mesh accuracy in the …

Multiscale homogenization and localization of materials with hierarchical porous microstructures

Z He, G Wang, MJ Pindera - Composite Structures, 2019 - Elsevier
Using an efficient, elasticity-based homogenization theory, we investigated the effect of
porosity redistribution at different microstructural scales on the homogenized moduli and …

Non-intrusive implementation of Multiscale Finite Element Methods: an illustrative example

RA Biezemans, C Le Bris, F Legoll… - Journal of Computational …, 2023 - Elsevier
Abstract Multiscale Finite Element Methods (MsFEM) are finite element type approaches
dedicated to multiscale problems. They first compute local, oscillatory, problem-dependent …

Determination of stress intensity factors of V-notch structures by characteristic analysis coupled with isogeometric boundary element method

Z Han, C Cheng, S Yao, Z Niu - Engineering Fracture Mechanics, 2019 - Elsevier
To describe the physical fields of the V-notch structure accurately, the structure is first
divided into two parts, the notch tip sector containing singular stress field and the non …

Concurrent material and structure optimization of multiphase hierarchical systems within a continuum micromechanics framework

T Gangwar, D Schillinger - Structural and Multidisciplinary Optimization, 2021 - Springer
We present a concurrent material and structure optimization framework for multiphase
hierarchical systems that relies on homogenization estimates based on continuum …

A generalized multiscale independent cover method for nonlocal damage simulation

P Sun, Y Cai, H Zhu - Engineering Analysis with Boundary Elements, 2023 - Elsevier
In this paper, a generalized multiscale independent cover method (MsICM) for nonlocal
damage simulation is proposed. The independent cover approximation is used in the micro …

Implicit a posteriori error estimation in cut finite elements

H Sun, D Schillinger, S Yuan - Computational Mechanics, 2020 - Springer
We describe a strategy for implicit a posteriori error estimation in cut finite elements. Our
approach is based on the definition of local residual-driven corrector problems that use a …