Results 51 to 60 of about 612,898 (145)

Determining Minimal Polynomial of Proper Element by Using Higher Degree Traces [PDF]

open access: yes, 2001
Modern communication engineerings, such as elliptic curve cryptographies, often requires algebra on finite extension field defined by modulus arithmetic with an irreducible polynomial. This paper provides a new method to detemine the minimal (irreducible)
Morikawa, Yoshitaka, Nogami, Yasuyuki
core   +1 more source

CSR STORAGE METHOD OF EXTENDED FINITE ELEMENT STIFFNESS MATRIX

open access: yesJixie qiangdu, 2019
The extended finite element method( XFEM) is one of the most widely used numerical methods to deal with cracks,holes and inclusions. Based on the partition of unity method( PUM),the additional function terms are introduced to the displacement ...
LIU YaoXi   +4 more
doaj  

Finite size scaling for quantum criticality using the finite-element method

open access: yes, 2012
Finite size scaling for the Schr\"{o}dinger equation is a systematic approach to calculate the quantum critical parameters for a given Hamiltonian. This approach has been shown to give very accurate results for critical parameters by using a systematic ...
B. Widom   +14 more
core   +1 more source

Predictive modelling of creep crack initiation and growth using Extended Finite Element Method (XFEM)

open access: yesFracture and Structural Integrity, 2022
In this study, a numerical strategy for predictive modelling of creep in tension tests for the rectangular plate with a single crack and CT-specimen based on the extended finite element method (XFEM) will be described in detail. A model of creep fracture
Meor Iqram Meor Ahmad   +3 more
doaj   +1 more source

Numerical Simulation on Deflecting Hydraulic Fracture with Refracturing Using Extended Finite Element Method

open access: yesEnergies, 2019
Refracturing is a key technology in enhancing the conductivity of fractures from hydraulically-fractured wells. However, the deflecting mechanism of the diverting fracture is still unclear. In this paper, a fully coupled seepage-stress model based on the
Jianxiong Li   +4 more
doaj   +1 more source

Crack propagation analysis in selected railway bogie components

open access: yesTechnical Transactions, 2020
This paper presents the practical application of fracture mechanics in investigating the possibility of crack propagation in a brake calliper bracket mounted in a vehicle bogie. The extended finite element method available in the Abaqus software was used.
Mysłek Adam
doaj   +1 more source

Fatigue life prediction of casing welded pipes by using the extended finite element method [PDF]

open access: yesFracture and Structural Integrity, 2016
The extended finite element (XFEM) method has been used to simulate fatigue crack growth in casing pipe, made of API J55 steel by high-frequency welding, in order estimate its structural integrity and life. Based on the critical value of stress intensity
Ljubica Lazić Vulićević   +4 more
doaj   +1 more source

Convergence and Optimality of Adaptive Mixed Methods on Surfaces [PDF]

open access: yes, 2014
In a 1988 article, Dziuk introduced a nodal finite element method for the Laplace-Beltrami equation on 2-surfaces approximated by a piecewise-linear triangulation, initiating a line of research into surface finite element methods (SFEM). Demlow and Dziuk
Holst, Michael   +2 more
core   +1 more source

Error estimates for a numerical approximation to the compressible barotropic Navier-Stokes equations

open access: yes, 2015
We present here a general method based on the investigation of the relative energy of the system, that provides an unconditional error estimate for the approximate solution of the barotropic Navier Stokes equations obtained by time and space ...
Gallouet, Thierry   +3 more
core   +4 more sources

Combined Semianalytical and Numerical Static Plate Analysis. Part 2: Resultant Multipoint Boundary Problem

open access: yesMATEC Web of Conferences, 2018
The distinctive paper is devoted to solution of multipoint boundary problem of plate analysis (Kirchhoff model) based on combined application of finite element method (FEM) and discrete-continual finite element method (DCFEM).
Negrozov Oleg   +2 more
doaj   +1 more source

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