Results 221 to 230 of about 10,412 (242)
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The intrinsic XFEM for two‐fluid flows
International Journal for Numerical Methods in Fluids, 2008AbstractIn two‐fluid flows, jumps and/or kinks along the interfaces are present in the resulting velocity and pressure fields. Standard methods require mesh manipulations with the aim that either element edges align with the interfaces or that the mesh is sufficiently refined near the interfaces.
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On time integration in the XFEM
International Journal for Numerical Methods in Engineering, 2009AbstractThe 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. This work focuses on time integration in the XFEM. The performance of the discontinuous Galerkin method in time (space–time finite elements (FEs)) and
Fries, Thomas-Peter, Zilian, Andreas
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Cortical bone fracture analysis using XFEM – case study
International Journal for Numerical Methods in Biomedical Engineering, 2016SummaryWe aim to achieve an accurate simulation of human cortical bone fracture using the extended finite element method within a commercial finite element software abaqus. A two‐dimensional unit cell model of cortical bone is built based on a microscopy image of the mid‐diaphysis of tibia of a 70‐year‐old human male donor. Each phase of this model, an
Ashraf, Idkaidek, Iwona, Jasiuk
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Simulation of Fatigue Crack Growth Using XFEM
Volume 3: Design and Analysis, 2020Abstract Pipelines carrying oil and gas are susceptible to fatigue failure (i.e., unstable fatigue crack propagation) due to fluctuating loading such as varying internal pressure and other external loadings. Fatigue crack growth (FCG) prediction through full-scale pipe tests can be expensive and time consuming, and experimental data is ...
Durlabh Bartaula +3 more
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A REGULARIZED XFEM FRAMEWORK FOR CONTINUOUS/DISCONTINUOUS DISPLACEMENTS
2009A numerical strategy for modelling both diffuse and localized cracking in elastodamaging continua is proposed. The approach is based on the REgularized eXtended Finite Element Method (REXFEM), which has been presented in [1] [2] for assigned interfaces of elastic and cohesive type.
Benvenuti E., Tralli A.
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Simulation of Hydraulic Fracture Propagation Using XFEM
Proceedings, 2013Inducing hydraulic fractures is vital in developing enhanced geothermal systems. To the same extent, simulation of such fluid-driven fractures is a complicated process to model even for simple geometries. This difficulty is subjected to the moving boundary conditions due to propagation of crack, non-linear governing equations of fluid flow within the ...
A. Gholami, S.S. Rahman, S. Natarajan
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XFEM with equivalent eigenstrain for matrix–inclusion interfaces
Computational Mechanics, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Modeling Unidirectional Composite Laminates Using XFEM
2015Abstract : Fiber-reinforced polymers (FRPs) composites consisting of a thermoset or thermoplastic polymer matrix reinforced by carbon, glass, or aramid fibers have been used as a substitute for more conventional materials in a wide range of applications, particularly in the aerospace, defense, and automobile industries. FRP strength-to-weight ratio and
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58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017
Madenci, Erdoğan +3 more
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Madenci, Erdoğan +3 more
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