Results 81 to 90 of about 4,749 (165)

On time integration in the XFEM

, 2009
peer reviewedThe extended finite element method (XFEM) is often used in applications that involve moving interfaces. Examples are the propagation of cracks or the movement of interfaces in two-phase problems.
Andreas Zilian, Fries, T.-P., ZILIAN, Andreas, Fries, Thomas-Peter, Thomas‐Peter Fries   +4 more
core   +1 more source

Méthodes XFEM et CutFEM d'ordre 2

, 2023
Ce travail présente les méthodes CutFEM et XFEM, des variantes de la méthode des éléments finis permettant la résolution des problèmes avec interface de discontinuité sans ajuster le maillage à l'interface. D'abord, une formulation discrète, utilisant la
Coulibali, Mohamed Konoufo
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High gradient XFEM for fracture mechanics [PDF]

, 2012
In this study, a new enrichment scheme in the eXtended Finite Element Method (XFEM) is investigated. The aim is to provide a framework in which a high gradient field can be approximated on fixed meshes.
Abbas, Safdar
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A dynamic XFEM formulation for crack identification

, 2017
A dynamic XFEM formulation for crack ...
Wang, Cuixia, He, Pengfei, Zhang, Chao, Rabczuk, Timon, Lahmer, Tom   +4 more
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Modelitzacio numérica de discontinuïtats geomecàniques per XFEM

, 2013
Aquesta tesina es basa en el desenvolupament d’una formulació XFEM que permeti descriure diversos casos d’elements amb discontinuïtats. L’objectiu d’aquest treball és proposar una formulació bàsica en XFEM equivalent a la dels elements junta, que ...
Crusat Codina, Laura
core   +1 more source

Finite-Element Analysis of Flexural Behaviour of Timber-Glass Composite I-Beams

Architecture, Civil Engineering, Environment
The paper focusses on a numerical study of the structural behaviour of timber-glass composite beams made of glass panes and timber flanges bonded with adhesives of different stiffness.
KOZŁOWSKI Marcin, SERRANO Erik, MROZEK Magdalena, MROZEK Dawid   +3 more
doaj   +1 more source

Craco propgation in steel plates using FEM and XFEM

, 2021
The pupose of this thesis is to compare stress intensity factor in steel plates using FEM and XFEM. Also to compare methodology in crack propgation with FEM and XFEM.
Næss, Espen
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XFEM+: una modificación de XFEM para mejorar la precisión de los flujos locales en problemas de difusión con conductividades muy distintas

Cuando se aplica XFEM a los problemas de difusión en un sistema de múltiples fases, esta popular estrategia produce una representación inexacta de los flujos en la vecindad de la interfase.
Cordero, Felipe, Díez, Pedro
core   +1 more source

Incremental-Secant Modulus Iteration Scheme and Stress Recovery for Simulating Cracking Process in Quasi-Brittle Materials Using XFEM

, 2007
In this paper, an incremental-secant modulus iteration scheme using the extended/generalized finite element method (XFEM) is proposed for the simulation of cracking process in quasi-brittle materials described by cohesive crack models whose softening law
Xiao QZ, 刘晓宇, Karihaloo, BL (reprint author), Univ Cardiff Wales, Sch Engn, Queens Bldg,Newport Rd,Parade, Cardiff CF24 3AA, Wales., Karihaloo BL   +3 more
core   +1 more source

Discrete modeling of multiple discontinuities in rock mass using XFEM

, 2017
Modeling of discontinuities (fractures and fault surfaces) is of major importance to assess the geomechanical behavior of oil and gas reservoirs, especially for tight and unconventional reservoirs.
Vargas, P. E., Carol, Ignacio, Mello,, U., Ausas, Roberto Federico, Das, Kamal C., Rodrigues, Eduardo, Gonzalez, Nubia Aurora, Segura, Josep María, Sandeep, Sandra, Lakshmikantha, Ramasesha Mookanahallipatna   +9 more
core   +1 more source