Results 41 to 50 of about 284,637 (183)

A review of computational approaches for simulating fracturing mechanisms in layered rock formations

International Journal of Coal Science & Technology
With the increasing availability and sophistication of computer hardware and software, computational modelling has become a cornerstone in the understanding of geomaterials mechanical behaviours over recent decades.
Hongtao Li, Jimeng Feng, Dong Su, Xiangsheng Chen, Xingsen Guo   +4 more
doaj   +1 more source

Penalty method with Crouzeix-Raviart approximation for the Stokes equations under slip boundary condition

, 2018
The Stokes equations subject to non-homogeneous slip boundary conditions are considered in a smooth domain $\Omega \subset \mathbb R^N \, (N=2,3)$.
Kashiwabara, Takahito, Oikawa, Issei, Zhou, Guanyu   +2 more
core   +1 more source

Convergence of simple adaptive Galerkin schemes based on h − h/2 error estimators [PDF]

, 2008
We discuss several adaptive mesh-refinement strategies based on (h − h/2)-error estimation. This class of adaptivemethods is particularly popular in practise since it is problem independent and requires virtually no implementational overhead.
C. Carstensen, C. Carstensen, C. Carstensen, C. Ortner, D. Praetorius, E. Bänsch, E. Hairer, F. Bornemann, I. Graham, I. Kossaczky, J. Cascon, M. Ainsworth, P. Deuflhard, P. Morin, R. Bank, R. Bank, R. Bank, R. Verfürth, R. Verfürth, S. Ferraz-Leite, S. Ferraz-Leite, S. Sauter, W. Dörfler, W. Dörfler, W. McLean   +24 more
core   +1 more source

ABOUT SOLUTION OF MULTIPOINT BOUNDARY PROBLEMS OF TWO-DIMENSIONAL STRUCTURAL ANALYSIS WITH THE USE OF COMBINED APPLICATION OF FINITE ELEMENT METHOD AND DISCRETE-CONTINUAL FINITE ELEMENT METHOD PART 2: SPECIAL ASPECTS OF FINITE ELEMENT APPROXIMATION

International Journal for Computational Civil and Structural Engineering, 2017
As is well known, the formulation of a multipoint boundary problem involves three main components: a description of the domain occupied by the structure and the corresponding subdomains; description of the conditions inside the domain and inside the ...
Pavel A. Akimov, Alexander M. Belostotsky, Taymuraz B. Kaytukov, Oleg A. Negrozov   +3 more
doaj   +1 more source

A smooth contact algorithm for the combined finite discrete element method

Computational Particle Mechanics, 2020
From its inception, the combined finite discrete element method has used a distributed potential contact force algorithm to resolve interaction between finite elements. The contact interaction algorithm relies on evaluation of the contact force potential field.
Zhou Lei, Esteban Rougier, Bryan Euser, Antonio Munjiza   +3 more
openaire   +2 more sources

Multilevel iterative solvers for the edge finite element solution of the 3D Maxwell equation [PDF]

, 2006
In the edge vector finite element solution of the frequency domain Maxwell equations, the presence of a large kernel of the discrete rotor operator is known to ruin convergence of standard iterative solvers.
Botchev, M.A., Nechaev, O.V., Shurina, E.P.   +2 more
core   +2 more sources

Fracture Failure of Reinforced Concrete Slabs Subjected to Blast Loading Using the Combined Finite-Discrete Element Method

Latin American Journal of Solids and Structures
Numerical modeling of fracture failure is challenging due to various issues in the constitutive law and the transition of continuum to discrete bodies.
Z. M. Jaini, Y. T. Feng, D. R. J. Owen, S. N. Mokhatar   +3 more
doaj   +1 more source

GPU based parallel FDEM for analysis of cable structures

Građevinar, 2017
A combined finite-discrete element method, adapted for the analysis of a parallel cable element model using graphic cards, is presented in the paper. The basic objective is to speed up sequential computation time by one or two orders of magnitude.
Milko Batinić, Hrvoje Smoljanović, Ante Munjiza, Ante Mihanović   +3 more
doaj   +1 more source

Simulation of Semi-Solid Material Mechanical Behavior Using a Combined Discrete/Finite Element Method [PDF]

, 2018
As a necessary step toward the quantitative prediction of hot tearing defects, a three-dimensional stress-strain simulation based on a combined finite element (FE)/discrete element method (DEM) has been developed that is capable of predicting the ...
Drezet, J.-M, Phillion, A., Rappaz, M., Sistaninia, M.   +3 more
core  

Interface Tracking and Solid-Fluid Coupling Techniques with Coastal Engineering Applications

, 2009
Multi-material physics arise in an innumerable amount of engineering problems. A broadly scoped numerical model is developed and described in this thesis to simulate the dynamic interaction of multi-fluid and solid systems.
Mindel, Julian Eduardo, Mindel, Julian Eduardo   +1 more
core   +1 more source