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On Two Properties of Shunkov Group

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2021
One of the interesting classes of mixed groups ( i.e. groups that can contain both elements of finite order and elements of infinite order) is the class of Shunkov groups. The group $G$ is called Shunkov group if for any finite subgroup $H$ of $G$ in the
A.A. Shlepkin, I. V. Sabodakh
doaj   +1 more source

MODELLING OF SOIL BEHAVIOR IN DYNAMIC LOAD

open access: yesInternational Journal for Computational Civil and Structural Engineering, 2017
The paper focuses on simulation of dynamic “structure – soil” interaction and unbounded soil halfspace. Principles for new finite elements developed in LIRA-SAPR software are described.
Alexander S. Gorodetsky   +2 more
doaj   +1 more source

Comparison between Finite Elements simulation of residual stress and Computer Vision measurements in a welding TIG process

open access: yesDiagnostyka, 2021
In this work, residual stresses arising after an industrial TIG welding process on an aerospace grade part are investigated. The customer demand for high product resistance and high dimensional accuracy calls for the control of the welding process and ...
Luca Petrucci   +5 more
doaj   +1 more source

Adaptive finite element methods

open access: yesActa Numerica
This is a survey of the theory of adaptive finite element methods (AFEMs), which are fundamental to modern computational science and engineering but whose mathematical assessment is a formidable challenge. We present a self-contained and up-to-date discussion of AFEMs for linear second-order elliptic PDEs and dimension d > 1, with emphasis on ...
Andrea Bonito   +3 more
openaire   +2 more sources

The tempered finite element method

open access: yesJournal of Computational Physics
In this paper, we propose a new approach -- the Tempered Finite Element Method (TFEM) -- that extends the Finite Element Method (FEM) to classes of meshes that include zero-measure or nearly degenerate elements for which standard FEM approaches do not allow convergence.
Antoine Quiriny   +4 more
openaire   +3 more sources

CENTRIFUGAL FAN IMPELLER FAILURE ANALYSIS USING FINITE ELEMENTS

open access: yesIngeniería, 2011
Este artículo es un análisis de falla ayudado por el modelado matemático de un rodete de un abanico centrífugo que formaba parte del quemador de una caldera de vapor saturado con una capacidad nominal de 1175 kW [120 cv].
Juan Gabriel Monge Gapper
doaj   +1 more source

Contact analysis using Trefftz and interface finite elements

open access: yesComputer Assisted Methods in Engineering and Science, 2022
Hybrid- Trefftz (HT) finite element (FE) analysis of two-dimensional elastic contact problems is addressed with the aid of interface elements and an interfacial constitutive relation. This paper presents the formulation of a four-noded HT finite element
Ke Y. Wang   +3 more
doaj  

Hierarchic finite elements for thin plates and shells

open access: yesComputer Assisted Methods in Engineering and Science, 2023
We consider the numerical approximation of thin plate and shell structures. The plate model is described following the Reissner-Mindlin assumptions while the shell is described using the Naghdi formulation.
Claudia Chinosi   +2 more
doaj  

The beam finite element with five nodal degrees of freedom

open access: yesMagazine of Civil Engineering
The article presents comparative calculations of reinforced concrete beams using two types of beam finite elements: with three and five nodal degrees of freedom. Calculations were performed both taking into account the concrete and reinforcement physical
Tyukalov Yury
doaj   +1 more source

ELEMENTS: A high-order finite element library in C++

open access: yesSoftwareX, 2019
We discuss the creation and implementation of a generalized library, named ELEMENTS, of mathematical functions for supporting a very broad range of element types including: linear, quadratic, and cubic serendipity elements in 2D and 3D; high-order ...
Jacob L. Moore   +2 more
doaj   +1 more source

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