Results 21 to 30 of about 5,962,437 (315)

Finite-volume matrix elements of two-body states [PDF]

open access: yes, 2018
In this talk, we present a framework for studying structural information of resonances and bound states coupling to two-hadron scattering states. This makes use of a recently proposed finite-volume formalism to determine a class of observables that are ...
Baroni, Alessandro   +3 more
core   +3 more sources

Solution representations for Trefftz-type finite elements

open access: yesComputer Assisted Methods in Engineering and Science, 2023
Solution representations are available for several differential equations. For elasticity problems some of the solution representations are considered in this paper.
Reinhard Piltner
doaj  

Finite Dynamic Elements and Modal Analysis

open access: yesShock and Vibration, 1993
A general modal analysis scheme is derived for forced response that makes use of high accuracy modes computed by the dynamic element method. The new procedure differs from the usual modal analysis in that the modes are obtained from a power series ...
N.J. Fergusson, W.D. Pilkey
doaj   +1 more source

Finite elements mathematical model of geometric nonlinearity

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2015
The article considers the construction of a mathematical model for accounting the geometric nonlinearity at finite elements method. The built model takes into account the changes in system stiffness matrix when changing its shape. In quality of an object
Аnastasiya Yu. Bazhanova   +2 more
doaj   +1 more source

Numerical integration for high order pyramidal finite elements [PDF]

open access: yes, 2010
We examine the effect of numerical integration on the convergence of high order pyramidal finite element methods. Rational functions are indispensable to the construction of pyramidal interpolants so the conventional treatment of numerical integration ...
Nigam, Nilima, Phillips, Joel
core   +1 more source

Cancellative Elements in Finite AG-groupoids

open access: yesJournal of New Theory, 2020
An Abel-Grassmann's groupoid (briey AG-groupoid) is a groupoid Ssatisfying the left invertive law: (xy)z = (zy)x for all x, y, z \in S. In the present paper, wediscuss the left and right cancellative property of elements of the nite AG-groupoidS.
Muhammad Uzair Khan   +2 more
doaj  

SIXTH DEGREE OF FREEDOM

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2020
The article describes new types of finite elements that allow you to take into account all six degrees of freedom of the shell. In order to compose the finite elements, the Allman functional with a rotational degree of freedom is used.
Alexander Gorodetsky   +2 more
doaj   +1 more source

Finite groups with 4p2q elements of maximal order

open access: yesOpen Mathematics, 2021
It is an interesting and difficult topic to determine the structure of a finite group by the number of elements of maximal order. This topic is related to Thompson’s conjecture, that is, if two finite groups have the same order type and one of them is ...
Tan Sanbiao, Chen Guiyun, Yan Yanxiong
doaj   +1 more source

Special Finite Elements with Adaptive Strain Field on the Example of One-Dimensional Elements

open access: yesApplied Sciences, 2021
The conception of special finite elements called multi-area elements for the analysis of structures with different stiffness areas has been presented in the paper.
Tadeusz Chyży, Monika Mackiewicz
doaj   +1 more source

Advanced finite elements in civil engineering practice

open access: yesComputer Assisted Methods in Engineering and Science, 2023
New developments in structural analysis methods such as automatic error estimation, adaptive discretization control, and mesh generation are slowly becoming available in engineering practice.
Stefan M. Holzer
doaj  

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