A three-dimensional generalized finite element method for simultaneous propagation of multiple hydraulic fractures from a wellbore

N Shauer, CA Duarte - Engineering Fracture Mechanics, 2022 - Elsevier
In this article, a 3-D methodology for the simulation of hydraulic fracture propagation using
the Generalized Finite Element Method (GFEM) is extended for the simultaneous …

Stable generalized finite element method (SGFEM) for three-dimensional crack problems

C Cui, Q Zhang, U Banerjee, I Babuška - Numerische Mathematik, 2022 - Springer
This paper proposes a stable generalized finite element method (SGFEM) for the linear 3D
elasticity problem with cracked domains. Conventional material-independent branch …

Fracture and size effect analysis in concrete using 3-DG/XFEM and a CZM-LEFM correlation model: Validation with experiments

A El-Tohfa, F Mukhtar - Computers & Structures, 2023 - Elsevier
The existence of process zones at crack tips in quasi-brittle materials is responsible for the
structural size-dependent fracture strength. Hence, accurate prediction tools should not only …

A generalized finite element method for three-dimensional hydraulic fracture propagation: Comparison with experiments

N Shauer, CA Duarte - Engineering Fracture Mechanics, 2020 - Elsevier
In this article, 3-D simulations of hydraulic fracture propagation with the Generalized Finite
Element Method (GFEM) are compared with several experiments. The GFEM in this work …

Well-conditioned and optimally convergent second-order Generalized/eXtended FEM formulations for linear elastic fracture mechanics

MHC Bento, SPB Proença, CA Duarte - Computer Methods in Applied …, 2022 - Elsevier
Abstract The Generalized/eXtended Finite Element Method (G/XFEM) has been established
as an approach to provide optimally convergent solutions for classes of problems that are …

[HTML][HTML] A condensed generalized finite element method (CGFEM) for interface problems

Q Zhang, C Cui, U Banerjee, I Babuška - Computer Methods in Applied …, 2022 - Elsevier
Extensive developments on various generalizations of the Finite Element Method (FEM) for
the interface problems, with unfitted mesh, have been made in the last few decades. Typical …

Three-dimensional partition-of-unity generalized node method for the simulation of fractured rock mass

Y Cai, P Yan - Computer Methods in Applied Mechanics and …, 2024 - Elsevier
Abstract A three-dimensional (3D) partition-of-unity (PU) generalized node method (GNM) is
developed for the simulation of fractured rock mass. In the 3D PUGNM, generalized nodes …

Recovery strategies, a posteriori error estimation, and local error indication for second‐order G/XFEM and FEM

MHC Bento, SPB Proença… - International Journal for …, 2023 - Wiley Online Library
This article presents a computationally efficient and straightforward to implement a posteriori
error estimator for second‐order G/XFEM and FEM approximations. The formulation is …

A high-order generalized finite element method for multiscale structural dynamics and wave propagation

AG Sanchez-Rivadeneira, CA Duarte - Computer Methods in Applied …, 2021 - Elsevier
This paper introduces a high-order multiscale Generalized/eXtended Finite Element Method
(GFEM) tailored for the solution of structural dynamics and wave propagation problems …

High-order stable generalized/extended finite element approximations for accurate stress intensity factors

B Mazurowski, AG Sanchez-Rivadeneira… - Engineering Fracture …, 2021 - Elsevier
This paper investigates the accuracy and robustness of stress intensity factor (SIF) extraction
using the p-Hierarchical Discontinuous Interpolant Stable Generalized Finite Element …