Results 51 to 60 of about 284,637 (183)

Study on Numerical Simulation of Seismic Collapse of RC Frame Structure with Infilled Wall

open access: yesAdvances in Civil Engineering, 2022
The infilled wall plays an important role in the formation of the survival space and life-saving passage of the seismic collapse of reinforcement concrete (RC) frame structure. Here, with the numerical modeling method of the infilled wall, the connection
Defeng Xu   +4 more
doaj   +1 more source

A Completely Discrete Heterogeneous Multiscale Finite Element Method for Multiscale Richards’ Equation of van Genuchten-Mualem Model

open access: yesJournal of Applied Mathematics, 2014
We propose a fully discrete method for the multiscale Richards’ equation of van Genuchten-Mualem model which describes the flow transport in unsaturated heterogenous porous media.
Haitao Cao, Tao Yu, Xingye Yue
doaj   +1 more source

Online Inverse Optimal Control for Control-Constrained Discrete-Time Systems on Finite and Infinite Horizons

open access: yes, 2020
In this paper, we consider the problem of computing parameters of an objective function for a discrete-time optimal control problem from state and control trajectories with active control constraints.
Ford, Jason J.   +2 more
core   +1 more source

A non-locking composite tetrahedron element for the combined finite discrete element method

open access: yesEngineering Computations, 2016
Purpose In order to avoid the problem of volumetric locking often encountered when using constant strain tetrahedral finite elements, the purpose of this paper is to present a new composite tetrahedron element which is especially designed for the combined finite-discrete element method (FDEM).
Zhou Lei   +5 more
openaire   +2 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

Simulation of Fracture Coalescence in Granite via the Combined Finite–Discrete Element Method [PDF]

open access: yesRock Mechanics and Rock Engineering, 2019
Fracture coalescence is a critical phenomenon for creating large fractures from smaller flaws, affecting fracture network flow and seismic energy release potential. In this paper, simulations of fracture coalescence processes in granite specimens with pre-existing cracks are performed.
Bryan Euser   +7 more
openaire   +2 more sources

Investigation of the influence of model control parameters on fracture characteristics of GPU parallel FDEM

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
Surrounding rock mass fracture characteristics play a significant role in the understanding of the CO2 geological storage and utilization (CGSU) engineering practices in abandoned mines. The combined finite discrete element method (FDEM) shows advantages
Weiqin Wang   +5 more
doaj   +1 more source

High-precision approximation of mixed finite element method for unsteady Stokes equation

open access: yesNantong Daxue xuebao. Ziran kexue ban
For the two-dimensional unsteady Stokes equations, the Taylor-Hood mixed finite element method is employed for numerical simulation. Firstly, the equation is transformed into the variational form by using the variational principle.Secondly, the domain is
DING Xiao; CHEN Lu; JIANG Shan
doaj   +1 more source

MODELING THE BRAZILIAN TENSILE STRENGTH TEST OF LIGNITE FROM PESTEANA OPENPIT MINE USING THE COMBINED FINITE-DISCRETE ELEMENT METHOD – FDEM [PDF]

open access: yesFiabilitate şi Durabilitate, 2023
Strength is the property of rocks to keep their internal structure unmodified and not deform under the action of a stress. Tensile strength is defined as the maximum tensile stress the rock can endure until its failure and it is usually lower than ...
Ionela Cristina MĂCEŞARU   +2 more
doaj  

Stability of generally stiffened anisotropic noncircular cylinders [PDF]

open access: yes
Continuous filament grid-stiffened structure is a stiffening concept that combines structural efficiency and damage tolerance. However, finite element design of such structures against buckling is expensive due to the complexities of the structure.
Sobh, Nahil Atef
core   +1 more source

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