Results 311 to 320 of about 1,079,625 (374)
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Numerical aspects of the eXtended Finite Element Method

PAMM, 2005
AbstractThe eXtended Finite Element Method (XFEM) is a very efficient way to reduce mesh dependencies when analysing crack growth. Displacements and stresses around the crack tip are calculated using additional shape functions which span the analytical displacement field around a crack tip.In this paper the following numerical aspects of the XFEM are ...
Markus Peters, Klaus Hackl
openaire   +1 more source

Crack growth analysis of carbon nanotube reinforced polymer nanocomposite using extended finite element method

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2018
In this work, the crack growth analysis of carbon nanotube reinforced polymer nanocomposite has been performed using extended finite element method.
Alok Negi   +3 more
semanticscholar   +1 more source

PWSCC Assessment by Using Extended Finite Element Method

Journal of Multiscale Modelling, 2015
The head penetration nozzle of control rod driving mechanism (CRDM) is known to be susceptible to primary water stress corrosion cracking (PWSCC) due to the welding-induced residual stress. Especially, the J-groove dissimilar metal weld regions have received many attentions in the previous studies. However, even though several advanced techniques such
Sung-Jun Lee   +2 more
openaire   +1 more source

A two‐dimensional extended finite element method model of discrete fracture networks

International Journal for Numerical Methods in Engineering, 2018
This article presents the first effort to develop a two‐dimensional model using the extended finite element method (XFEM) for the simulation of discrete fracture networks, in which the mesh does not conform to the natural fracture network.
Endrina Rivas   +2 more
semanticscholar   +1 more source

A Model of Cleavage Crack Propagation in a BCC Polycrystalline Solid Based on the Extended Finite Element Method

Acta Materialia, 2018
The first 3D model to simulate cleavage crack propagation in a body center cubic (BCC) polycrystalline solid is presented. The model was developed based on the extended finite element method (XFEM).
Kazuki Shibanuma   +4 more
semanticscholar   +1 more source

An Integration Scheme of Extended Finite Element Method

Applied Mechanics and Materials, 2011
A simple integration scheme is presented for numerical integration in the extended finite element method(XFEM). In this scheme, the integral domain of common triangular mesh is converted to that of standard triangular mesh and the integral domain of standard triangular mesh is converted to that of quadrilateral mesh.
Lin Sheng Li, Chang Jun Qiu, Lan Li
openaire   +1 more source

Fatigue crack growth behavior of thermo-mechanically processed AA 5754: Experiment and extended finite element method simulation

Mechanics of Advanced Materials and Structures, 2018
Fatigue and fracture parameters such as sigmoidal curve, fatigue crack growth threshold, stress intensity factor (SIF), and Paris constants are evaluated for thermo-mechanically processed Al-Mg (AA 5754) alloy at different stress-ratio.
Pankaj Kumar   +2 more
semanticscholar   +1 more source

The Extended Finite Element Method

2014
This chapter discusses level-set topology optimization methods where the governing state equations are discretized by the Extended Finite Element Method (XFEM). In contrast to conventional methods that map the level-set function into a density distribution of a fictitious material, the XFEM allow preserving the crisp geometry information of level-sets ...
openaire   +1 more source

Fracture Analysis in Orthotropic Thermoelasticity Using Extended Finite Element Method

Advances in Applied Mathematics and Mechanics, 2015
AbstractIn this paper, a method for extracting stress intensity factors (SIFs) in orthotropic thermoelasticity fracture by the extended finite element method (XFEM) and interaction integral method is present. The proposed method is utilized in linear elastic crack problems.
Jia, Honggang, Nie, Yufeng, Li, Junlin
openaire   +1 more source

Numerical simulation of fracture propagation in freezing rocks using the extended finite element method (XFEM)

International Journal of Rock Mechanics And Mining Sciences, 2021
Yun Zhou   +7 more
semanticscholar   +1 more source

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