Results 21 to 30 of about 3,450,969 (293)

A Family of unitary higher order equations [PDF]

open access: yes, 1996
A scalar field obeying a Lorentz invariant higher order wave equation, is minimally coupled to the electromagnetic field. The propagator and vertex factors for the Feynman diagrams, are determined.
C. G. Bollini, L. E. Oxman, M. C. Rocca
core   +2 more sources

A numerical study of the second-order wave excitation of ship springing by a higher-order boundary element method

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
: This paper presents some of the efforts by the authors towards numerical prediction of springing of ships. A time-domain Higher Order Boundary Element Method (HOBEM) based on cubic shape function is first presented to solve a complete second-order ...
Yan-Lin Shao, Odd M. Faltinsen
doaj   +3 more sources

Layerwise finite element approach for the bending analysis of Bi-Directional functionally graded layered plates [PDF]

open access: yesJournal of Applied Research on Industrial Engineering, 2021
In this paper, layerwise finite element analysis for the bending behavior of two-dimensional functionally graded layered plates with different boundary conditions is presented.
Laith Mazahreh   +1 more
doaj   +1 more source

Higher Order Cut Finite Elements for the Wave Equation [PDF]

open access: yesJournal of Scientific Computing, 2019
The scalar wave equation is solved using higher order immersed finite elements. We demonstrate that higher order convergence can be obtained. Small cuts with the background mesh are stabilized by adding penalty terms to the weak formulation. This ensures that the condition numbers of the mass and stiffness matrix are independent of how the boundary ...
Simon Sticko, Gunilla Kreiss
openaire   +2 more sources

Stochastic higher order finite element elasto-plastic analysis of the necking phenomenon

open access: yesITM Web of Conferences, 2017
The principal goal of this work is to investigate an application of the stochastic perturbation technique of the 10th order in coupled thermo-elasto-plastic analysis of tension of the steel elastic bar exposed to fire with thermally dependent material ...
Strąkowski Michał, Kamiński Marcin
doaj   +1 more source

A higher order control volume based finite element method to prodict the deformation of heterogeneous materials [PDF]

open access: yes, 2013
Materials with obvious internal structure can exhibit behaviour, under loading, that cannot be described by classical elasticity. It is therefore important to develop computational tools incorporating appropriate constitutive theories that can capture ...
A.J. Beveridge   +27 more
core   +1 more source

Estimation of Groundwater Recharge from Rainfall for Arid Coastal Plain of Ninh Thuan Province, Vietnam

open access: yesRussian Journal of Earth Sciences, 2022
Estimation of groundwater recharge from rainfall is a key factor for determining groundwater resources in water development and management for supporting sustainable socio-economic development, especially for arid areas. The paper presents finite element
Nguyen Van Hoang   +4 more
doaj   +1 more source

On the Structure of Higher Order Voronoi Cells [PDF]

open access: yes, 2019
The classic Voronoi cells can be generalized to a higher-order version by considering the cells of points for which a given $k$-element subset of the set of sites consists of the $k$ closest sites.
Martínez-Legaz, Juan Enrique   +2 more
core   +2 more sources

An optimally convergent higher-order finite element coupling method for interface and domain decomposition problems

open access: yesResults in Applied Mathematics, 2020
We present a new, optimally accurate finite element method for interface problems that does not require matching interface grids or spatially coincident interfaces.
James Cheung   +3 more
doaj   +1 more source

Elastic pantographic 2D lattices: a numerical analysis on the static response and wave propagation; pp. 219–225 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2015
In the present paper we consider a structure constituted by ‘long’ Euler beams forming two mutually intersecting arrays and interacting via internal pivots, which we call pantographic 2D lattices.
Francesco dell’Isola   +2 more
doaj   +1 more source

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