Results 21 to 30 of about 23,034 (257)

Estimation of thermophysic properties of a bimaterial by temperature field measurement and finite element model updating

open access: yesMechanics & Industry, 2023
The aim of this study is to identify simultaneously the thermal conductivity tensor and the heat capacity per unit volume of a bimaterial, whose heat conduction obeys Fourier’s law. This approach is validated by numerical simulation.
Koumekpo Yao   +5 more
doaj   +1 more source

Inverse Identification of Residual Stress Distribution in Aluminium Alloy Components Based on Deep Learning

open access: yesApplied Sciences, 2022
Residual stress within a structural component can significantly affect the mechanical performance and stability of a structure. Therefore, it is crucial to find a way to determine the residual stress distribution to maintain the normal working of ...
Tulin Xiong   +3 more
doaj   +1 more source

Methods of diagnostic of pipe mechanical damage using functional analysis, neural networks and method of finite elements [PDF]

open access: yesINCAS Bulletin, 2020
The main goal of the study is to analyze methods and diagnose mechanical damage to the pipeline using functional analysis, neural networks and the finite element method.
Elena L. KUZNETSOVA   +2 more
doaj   +1 more source

Inverse Subspace Iteration for Spectral Stochastic Finite Element Methods [PDF]

open access: yesSIAM/ASA Journal on Uncertainty Quantification, 2016
25 pages, 13 figures, 3 ...
Bedrich Sousedík, Howard C. Elman
openaire   +4 more sources

Global superconvergence of finite element methods for parabolic inverse problems [PDF]

open access: yesApplications of Mathematics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Azari, Hossein, Zhang, Shuhua
openaire   +1 more source

Two-Step Calibration Method for Inverse Finite Element with Small Sample Features

open access: yesSensors, 2020
When the inverse finite element method (inverse FEM) is used to reconstruct the deformation field of a multi-element structure with strain measurements, strain measurement errors can lower the reconstruction accuracy of the deformation field. Furthermore,
Libo Xu   +3 more
doaj   +1 more source

An Introduction to Finite Element Methods for Inverse Coefficient Problems in Elliptic PDEs [PDF]

open access: yesJahresbericht der Deutschen Mathematiker-Vereinigung, 2021
AbstractSeveral novel imaging and non-destructive testing technologies are based on reconstructing the spatially dependent coefficient in an elliptic partial differential equation from measurements of its solution(s). In practical applications, the unknown coefficient is often assumed to be piecewise constant on a given pixel partition (corresponding ...
openaire   +4 more sources

Coarse and Fine Two-Stage Calibration Method for Enhancing the Accuracy of Inverse Finite Element Method

open access: yesSensors, 2023
The inverse finite element method (iFEM) is a novel method for reconstructing the full-field displacement of structures by discrete measurement strain. In practical engineering applications, the accuracy of iFEM is reduced due to the positional offset of
Jiewei Lu   +3 more
doaj   +1 more source

Inverse finite element method for large‐displacement beams

open access: yesInternational Journal for Numerical Methods in Engineering, 2010
AbstractA finite element model for the inverse analysis of large‐displacement beams in the elastic range is presented. The model permits determining the initial shape of a beam such that it attains the given design shape under the effect of service loads.
Albanesi, Alejandro Eduardo   +2 more
openaire   +3 more sources

IMPACT OF MATRIX INVERSION ON THE COMPLEXITY OF THE FINITE ELEMENT METHOD

open access: yesScience and Transport Progress, 2016
Purpose. The development of a wide construction market and a desire to design innovative architectural building constructions has resulted in the need to create complex numerical models of objects having increasingly higher computational complexity. The purpose of this work is to show that choosing a proper method for solving the set of equations can ...
M. Sybis   +2 more
openaire   +6 more sources

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