Results 51 to 60 of about 10,366 (240)

A Probabilistic Cut Finite Element Method With Random Field Generator and Bayesian Model Calibration for Flow Through Rough Cracks

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 1, Page 298-320, January 2026.
ABSTRACT A new model for the simulation of fluid flow through rough cracks is presented. The model combines a probabilistic cut finite element method (PCutFEM) to capture the unfitted boundary condition at the fluid interface, with a stochastic random field generator to represent the crack asperities.
Brubeck Lee Freeman, Evan John Ricketts, Diane Gardner, Anthony Jefferson, Peter John Cleall, Pierre Kerfriden   +5 more
wiley   +1 more source

Macroscopic material degradation model of Norway spruce clear wood for XFEM

Results in Materials, 2023
The study aims at investigating the failure behavior of Norway spruce clear wood specimens using XFEM by modeling earlywood and latewood growth rings.
Tamás Király, Zsolt Karácsonyi, Rudolf Polgár   +2 more
doaj   +1 more source

Finite Element Analysis of FRP Debonding Failure at the Tip of Flexural/Shear Crack in Concrete Beam [PDF]

, 2013
One of the most common failure modes of strengthened RC beams with externally bonded FRP is intermediate crack (IC) debonding of FRP initiated at the tip of flexural/shear cracks. This study presents a method, using extended finite element method (XFEM),
Harries, Kent, Mohammadi, Tayyebeh, Wan, Baolin   +2 more
core   +1 more source

Eliminating Spurious Velocities with a Stable Approximation of Viscous Incompressible Two-Phase Stokes Flow

, 2013
We present a parametric finite element approximation of two-phase flow. This free boundary problem is given by the Stokes equations in the two phases, which are coupled via jump conditions across the interface.
Barrett, John W., Garcke, Harald, Nürnberg, Robert   +2 more
core   +1 more source

Validation and Investigation of a Multiaxial Progressive Damage Model Through Glass Fiber Reinforced Tube Specimen Under Fatigue Loading

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 1, Page 84-101, January 2026.
ABSTRACT In the field of composite structure fatigue simulations, progressive damage models are common tools. However, these models are dependent on the definition of meta parameters, such as the residual stiffness following an interfiber failure mode. This study presents a progressive damage model utilizing shell elements, with the material parameters
Richard Fink, Stephan Häusler, Manuela Sander   +2 more
wiley   +1 more source

An embedded formulation with conforming [PDF]

, 2013
Use of strong discontinuities with satisfaction of ...
Alfaiate, J., Areias, Pedro, Dias-da-Costa, D., Júlio, E., Sluys, L. J.   +4 more
core  

Stress intensity factors computation for bending plates with extended finite element method [PDF]

, 2012
The modelization of bending plates with through-the-thickness cracks is investigated. We consider the Kirchhoff–Love plate model, which is valid for very thin plates.
Adams, Areias, Areias, Areias, Areias, Bordas, Béchet, Ciarlet, Ciarlet, Ciarlet, Destuynder, Destuynder, Dolbow, Grisvard, Hui, Laborde, Lasry, Liu, Moës, Moës, Moës, Nicaise, Song, Sukumar, Viz, Wyart, Zehnder, Zi, Zucchini   +28 more
core   +3 more sources

Including Pre‐Existing Fractures in Phase Field Fracture Models

International Journal for Numerical Methods in Engineering, Volume 126, Issue 23, 15 December 2025.
ABSTRACT The phase field method for fracture modelling has, in recent years, become the method of choice for complex fracture problems, especially those involving branching, merging, or nucleating fractures. As the number of applications of the phase field method has expanded, the importance of assessing its accuracy has increased. One important factor
Bradley Sims, Robert E. Bird, William M. Coombs, Stefano Giani   +3 more
wiley   +1 more source

Enhanced error estimator based on a nearly equilibrated moving least squares recovery technique for FEM and XFEM [PDF]

, 2012
In this paper a new technique aimed to obtain accurate estimates of the error in energy norm using a moving least squares (MLS) recovery-based procedure is presented.
BA Szabó, C Farhat, C Prange, C Shih, CF Shih, E Béchet, E Giner, F. Chinesta, F. J. Fuenmayor, FJ Fuenmayor, G Ventura, J Chessa, J Panetier, J Panetier, J. J. Ródenas, JA Cottrell, JE Tarancón, JF Abel, JJ Ródenas, JJ Ródenas, JJ Ródenas, JPM de Almeida, LY Li, M Ainsworth, M Duflot, M Fleming, ML Williams, NE Wiberg, O. A. González-Estrada, P Coorevits, P Díez, P Ladevèze, P Ladevèze, QZ Xiao, R Gracie, S Bordas, S Natarajan, T Belytschko, T Blacker, T Fries, T Kvamsdal, T Pannachet, T Strouboulis, W Bangerth   +43 more
core   +3 more sources

Improving the modified XFEM for optimal high‐order approximation [PDF]

International Journal for Numerical Methods in Engineering, 2019
SummaryThis paper investigates the accuracy of high‐order extended finite element methods (XFEMs) for the solution of discontinuous problems with both straight and curved weak discontinuities in two dimensions. The modified XFEM, a specific form of the stable generalised finite element method, is found to offer advantages in cost and complexity over ...
Ben A. Saxby, Andrew L. Hazel
openaire   +2 more sources