Results 31 to 40 of about 8,649 (192)

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

Research on Fatigue Crack Propagation of 304 Austenitic Stainless Steel Based on XFEM and CZM

Metals, 2020
The fatigue crack propagation of 304 austenitic stainless steel was studied both by experiments and numerical simulations. Two methods were applied to simulate the crack propagation: the extended finite element method (XFEM) and the cohesive zone model ...
Xiaodong Hu, Jie Xu, Xiangmei Du, Yong Zhang, Fan Zhou   +4 more
doaj   +1 more source

Revealing Mode I Failure Mechanisms in Adhesively Bonded Joints: An Integrated Study with the eXtended Finite Element Method and Its Coupled Approaches

Applied Sciences
As the core load-transfer medium in bonded structures, the adhesive layer critically governs overall reliability, with Mode I fracture representing its dominant failure mechanism under tensile loading.
Xule Zhang, Xiangke Zheng, Xinyu Cang, Ning Hu, Zhiguo Li   +4 more
doaj   +1 more source

An embedded FE model for modelling reinforced concrete slabs in fire [PDF]

, 2008
This is the post-print version of the final paper published in Engineering Structures. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting,
Areias, Bailey, Bathe, Bazant, Bazant, Bazant, Elghazouli, Fan, Foster, Gillie, Huang, Huang, Izzuddin, Izzudin, Jirasek, Lim, Sukumar, Wells, Xinmeng Yu, Yamamoto, Zhang, Zhaohui Huang   +21 more
core   +1 more source

Stable Generalized Finite Element Method (SGFEM) [PDF]

, 2011
The Generalized Finite Element Method (GFEM) is a Partition of Unity Method (PUM), where the trial space of standard Finite Element Method (FEM) is augmented with non-polynomial shape functions with compact support.
Babuška, Babuška, Babuška, Babuška, Bauer, Belytschko, Benzley, Blum, Byskov, Daux, Dolbow, Duarte, Duarte, Esser, Farsad, Fix, Fries, Fries, Golub, Griebel, Higham, I. Babuška, Kincaid, Kleindorfer, Li, Lu, Matache, Melenk, Menk, Moes, Moes, Nouy, Oberkampf, Oden, O’Hara, Rao, Roache, Schweitzer, Simone, Strang, Strouboulis, Strouboulis, Strouboulis, Sukumar, U. Banerjee, Wilkinson   +45 more
core   +3 more sources

A PDE-constrained optimization formulation for discrete fracture network flows [PDF]

, 2013
We investigate a new numerical approach for the computation of the 3D flow in a discrete fracture network that does not require a conforming discretization of partial differential equations on complex 3D systems of planar fractures.
Cacas M. C., Fries T.-P., Sandra Pieraccini, Stefano Berrone, Stefano Scialò   +4 more
core   +2 more sources

XFEM Crack Propagation Under Rolling Contact Fatigue

Procedia Engineering, 2013
AbstractTo assure the security, heavy monitoring and maintenance procedures for the fatigue of rails are set up by infrastructure managers. In order to go towards a more cost efficient railway system, it is essential to optimize the maintenance of rails: frequency of monitoring, rail replacement strategy, grinding policyTo progress in this area, a ...
Trolle, B., Baietto, Marie-Christine, Gravouil, A., Mai, S. H., Nguyen-Tajan, T. M. L.   +4 more
openaire   +2 more sources

The influence of temperature and thickness on the fracture behavior of P265GH material, using the J-integral method

Engineering and Applied Science Research, 2021
In this work we exanimate, in elastoplastic case, the crack growth in P265GH material, we use eXtended finite element method (XFEM) in the Cast3m code. Crack growth in the 3D CT pipe sampleis modeled using stress intensity factor and J integral.
Houda Salmi, Abdelilah Hachim, Hanan El Bhilat, Khalid El Had   +3 more
doaj  

Three-dimensional crack analyses under thermal stress field by XFEM using only the Heaviside step function

Mechanical Engineering Journal, 2020
A three-dimensional crack analysis method based on XFEM using only the Heaviside step function was applied to heat transfer and subsequent thermal stress analyses of cracked structures. The proposed method employs tip elements to discretize the weak form
Toshio NAGASHIMA
doaj   +1 more source

Research on Extended Finite Element Method for Axisymmetric Electrostatic Field Based on Liquid Nitrogen with Bubbles

Applied Sciences, 2021
In this paper, the extended finite element method (XFEM) is first applied to account for the weak discontinuity of the axisymmetric electrostatic field. Firstly, the interface between two materials in an element is described by the level set method.
Nana Duan, Shaocong Lu, Xinyu Ma, Weijie Xu, Fuquan Jin, Shuhong Wang   +5 more
doaj   +1 more source